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Finding the Fourth Proportional to 711,785.04, 981,066.24 and 539,646

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Solution

The fourth proportional to 711,785.04, 981,066.24 and 539,646 is: 743,803.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,785.04 : 981,066.24 = 539,646 : x
  2. Step 2: Convert to fraction form
    711,785.04/981,066.24 = 539,646/x
  3. Step 3: Cross multiply
    711,785.04x = 981,066.24 × 539,646
  4. Step 4: Simplify right side
    711,785.04x = 529,428,472,151.04
  5. Step 5: Solve for x
    x = 529,428,472,151.04/711,785.04
  6. Step 6: Final answer
    x = 743,803.88

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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.