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Finding the Fourth Proportional to 625,566.78, 938,206.26 and 372,918.60

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Solution

The fourth proportional to 625,566.78, 938,206.26 and 372,918.60 is: 559,292.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,566.78 : 938,206.26 = 372,918.60 : x
  2. Step 2: Convert to fraction form
    625,566.78/938,206.26 = 372,918.60/x
  3. Step 3: Cross multiply
    625,566.78x = 938,206.26 × 372,918.60
  4. Step 4: Simplify right side
    625,566.78x = 349,874,564,990.44
  5. Step 5: Solve for x
    x = 349,874,564,990.44/625,566.78
  6. Step 6: Final answer
    x = 559,292.11

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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.