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Finding the Fourth Proportional to 876,347.40, 1,230,429.30 and 876,347.40

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Solution

The fourth proportional to 876,347.40, 1,230,429.30 and 876,347.40 is: 1,230,429.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,347.40 : 1,230,429.30 = 876,347.40 : x
  2. Step 2: Convert to fraction form
    876,347.40/1,230,429.30 = 876,347.40/x
  3. Step 3: Cross multiply
    876,347.40x = 1,230,429.30 × 876,347.40
  4. Step 4: Simplify right side
    876,347.40x = 1,078,283,517,938.82
  5. Step 5: Solve for x
    x = 1,078,283,517,938.82/876,347.40
  6. Step 6: Final answer
    x = 1,230,429.30

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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 (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.