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Finding the Fourth Proportional to 679,930.71, 937,591.96 and 507,572.22

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Solution

The fourth proportional to 679,930.71, 937,591.96 and 507,572.22 is: 699,917.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,930.71 : 937,591.96 = 507,572.22 : x
  2. Step 2: Convert to fraction form
    679,930.71/937,591.96 = 507,572.22/x
  3. Step 3: Cross multiply
    679,930.71x = 937,591.96 × 507,572.22
  4. Step 4: Simplify right side
    679,930.71x = 475,895,635,790.09
  5. Step 5: Solve for x
    x = 475,895,635,790.09/679,930.71
  6. Step 6: Final answer
    x = 699,917.85

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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.