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Finding the Fourth Proportional to 924,347.68, 1,386,503.04 and 418,814.44

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Solution

The fourth proportional to 924,347.68, 1,386,503.04 and 418,814.44 is: 628,213.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    924,347.68 : 1,386,503.04 = 418,814.44 : x
  2. Step 2: Convert to fraction form
    924,347.68/1,386,503.04 = 418,814.44/x
  3. Step 3: Cross multiply
    924,347.68x = 1,386,503.04 × 418,814.44
  4. Step 4: Simplify right side
    924,347.68x = 580,687,494,255.90
  5. Step 5: Solve for x
    x = 580,687,494,255.90/924,347.68
  6. Step 6: Final answer
    x = 628,213.29

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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.