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Finding the Fourth Proportional to 404,920.47, 607,318.28 and 135,053.33

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Solution

The fourth proportional to 404,920.47, 607,318.28 and 135,053.33 is: 202,559.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,920.47 : 607,318.28 = 135,053.33 : x
  2. Step 2: Convert to fraction form
    404,920.47/607,318.28 = 135,053.33/x
  3. Step 3: Cross multiply
    404,920.47x = 607,318.28 × 135,053.33
  4. Step 4: Simplify right side
    404,920.47x = 82,020,353,384.91
  5. Step 5: Solve for x
    x = 82,020,353,384.91/404,920.47
  6. Step 6: Final answer
    x = 202,559.17

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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.