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Finding the Fourth Proportional to 1,057,751,680.40, 1,586,627,520.60 and 627,769,984.40

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Solution

The fourth proportional to 1,057,751,680.40, 1,586,627,520.60 and 627,769,984.40 is: 941,654,976.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,057,751,680.40 : 1,586,627,520.60 = 627,769,984.40 : x
  2. Step 2: Convert to fraction form
    1,057,751,680.40/1,586,627,520.60 = 627,769,984.40/x
  3. Step 3: Cross multiply
    1,057,751,680.40x = 1,586,627,520.60 × 627,769,984.40
  4. Step 4: Simplify right side
    1,057,751,680.40x = 996,037,133,855,672,576
  5. Step 5: Solve for x
    x = 996,037,133,855,672,576/1,057,751,680.40
  6. Step 6: Final answer
    x = 941,654,976.60

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.