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Finding the Fourth Proportional to 616,418.87, 924,815.13 and 436,851.47

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Solution

The fourth proportional to 616,418.87, 924,815.13 and 436,851.47 is: 655,409.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,418.87 : 924,815.13 = 436,851.47 : x
  2. Step 2: Convert to fraction form
    616,418.87/924,815.13 = 436,851.47/x
  3. Step 3: Cross multiply
    616,418.87x = 924,815.13 × 436,851.47
  4. Step 4: Simplify right side
    616,418.87x = 404,006,849,692.59
  5. Step 5: Solve for x
    x = 404,006,849,692.59/616,418.87
  6. Step 6: Final answer
    x = 655,409.61

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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.