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Finding the Fourth Proportional to 655,857.71, 981,564.54 and 403,298.18

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Solution

The fourth proportional to 655,857.71, 981,564.54 and 403,298.18 is: 603,580.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,857.71 : 981,564.54 = 403,298.18 : x
  2. Step 2: Convert to fraction form
    655,857.71/981,564.54 = 403,298.18/x
  3. Step 3: Cross multiply
    655,857.71x = 981,564.54 × 403,298.18
  4. Step 4: Simplify right side
    655,857.71x = 395,863,192,534.54
  5. Step 5: Solve for x
    x = 395,863,192,534.54/655,857.71
  6. Step 6: Final answer
    x = 603,580.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.