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Finding the Fourth Proportional to 616,279.80, 924,419.70 and 367,447.80

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Solution

The fourth proportional to 616,279.80, 924,419.70 and 367,447.80 is: 551,171.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,279.80 : 924,419.70 = 367,447.80 : x
  2. Step 2: Convert to fraction form
    616,279.80/924,419.70 = 367,447.80/x
  3. Step 3: Cross multiply
    616,279.80x = 924,419.70 × 367,447.80
  4. Step 4: Simplify right side
    616,279.80x = 339,675,985,041.66
  5. Step 5: Solve for x
    x = 339,675,985,041.66/616,279.80
  6. Step 6: Final answer
    x = 551,171.70

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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.