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Finding the Fourth Proportional to 691,353.60, 954,508.32 and 564,331.20

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Solution

The fourth proportional to 691,353.60, 954,508.32 and 564,331.20 is: 779,136.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,353.60 : 954,508.32 = 564,331.20 : x
  2. Step 2: Convert to fraction form
    691,353.60/954,508.32 = 564,331.20/x
  3. Step 3: Cross multiply
    691,353.60x = 954,508.32 × 564,331.20
  4. Step 4: Simplify right side
    691,353.60x = 538,658,825,635.58
  5. Step 5: Solve for x
    x = 538,658,825,635.58/691,353.60
  6. Step 6: Final answer
    x = 779,136.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.