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Finding the Fourth Proportional to 627,011.12, 940,503.72 and 153,698.96

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Solution

The fourth proportional to 627,011.12, 940,503.72 and 153,698.96 is: 230,545.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,011.12 : 940,503.72 = 153,698.96 : x
  2. Step 2: Convert to fraction form
    627,011.12/940,503.72 = 153,698.96/x
  3. Step 3: Cross multiply
    627,011.12x = 940,503.72 × 153,698.96
  4. Step 4: Simplify right side
    627,011.12x = 144,554,443,640.13
  5. Step 5: Solve for x
    x = 144,554,443,640.13/627,011.12
  6. Step 6: Final answer
    x = 230,545.26

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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.