Home / 930,889,356.20-1,396,334,034.30-412,769,810.60

Finding the Fourth Proportional to 930,889,356.20, 1,396,334,034.30 and 412,769,810.60

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Solution

The fourth proportional to 930,889,356.20, 1,396,334,034.30 and 412,769,810.60 is: 619,154,715.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    930,889,356.20 : 1,396,334,034.30 = 412,769,810.60 : x
  2. Step 2: Convert to fraction form
    930,889,356.20/1,396,334,034.30 = 412,769,810.60/x
  3. Step 3: Cross multiply
    930,889,356.20x = 1,396,334,034.30 × 412,769,810.60
  4. Step 4: Simplify right side
    930,889,356.20x = 576,364,534,872,344,896
  5. Step 5: Solve for x
    x = 576,364,534,872,344,896/930,889,356.20
  6. Step 6: Final answer
    x = 619,154,715.90

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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.