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Finding the Fourth Proportional to 719,037.86, 992,773.87 and 447,227.91

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Solution

The fourth proportional to 719,037.86, 992,773.87 and 447,227.91 is: 617,486.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,037.86 : 992,773.87 = 447,227.91 : x
  2. Step 2: Convert to fraction form
    719,037.86/992,773.87 = 447,227.91/x
  3. Step 3: Cross multiply
    719,037.86x = 992,773.87 × 447,227.91
  4. Step 4: Simplify right side
    719,037.86x = 443,996,181,864.64
  5. Step 5: Solve for x
    x = 443,996,181,864.64/719,037.86
  6. Step 6: Final answer
    x = 617,486.52

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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.