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Finding the Fourth Proportional to 626,920.40, 938,825.40 and 502,504.40

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Solution

The fourth proportional to 626,920.40, 938,825.40 and 502,504.40 is: 752,510.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,920.40 : 938,825.40 = 502,504.40 : x
  2. Step 2: Convert to fraction form
    626,920.40/938,825.40 = 502,504.40/x
  3. Step 3: Cross multiply
    626,920.40x = 938,825.40 × 502,504.40
  4. Step 4: Simplify right side
    626,920.40x = 471,763,894,331.76
  5. Step 5: Solve for x
    x = 471,763,894,331.76/626,920.40
  6. Step 6: Final answer
    x = 752,510.04

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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.