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Finding the Fourth Proportional to 625,363.80, 936,663.30 and 484,013.40

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Solution

The fourth proportional to 625,363.80, 936,663.30 and 484,013.40 is: 724,950.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,363.80 : 936,663.30 = 484,013.40 : x
  2. Step 2: Convert to fraction form
    625,363.80/936,663.30 = 484,013.40/x
  3. Step 3: Cross multiply
    625,363.80x = 936,663.30 × 484,013.40
  4. Step 4: Simplify right side
    625,363.80x = 453,357,588,488.22
  5. Step 5: Solve for x
    x = 453,357,588,488.22/625,363.80
  6. Step 6: Final answer
    x = 724,950.16

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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.