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Finding the Fourth Proportional to 938,952, 1,295,820.72 and 531,057.60

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Solution

The fourth proportional to 938,952, 1,295,820.72 and 531,057.60 is: 732,897.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    938,952 : 1,295,820.72 = 531,057.60 : x
  2. Step 2: Convert to fraction form
    938,952/1,295,820.72 = 531,057.60/x
  3. Step 3: Cross multiply
    938,952x = 1,295,820.72 × 531,057.60
  4. Step 4: Simplify right side
    938,952x = 688,155,441,593.47
  5. Step 5: Solve for x
    x = 688,155,441,593.47/938,952
  6. Step 6: Final answer
    x = 732,897.36

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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.