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Finding the Fourth Proportional to 616,232.40, 924,348.60 and 378,805.20

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Solution

The fourth proportional to 616,232.40, 924,348.60 and 378,805.20 is: 568,207.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,232.40 : 924,348.60 = 378,805.20 : x
  2. Step 2: Convert to fraction form
    616,232.40/924,348.60 = 378,805.20/x
  3. Step 3: Cross multiply
    616,232.40x = 924,348.60 × 378,805.20
  4. Step 4: Simplify right side
    616,232.40x = 350,148,056,292.72
  5. Step 5: Solve for x
    x = 350,148,056,292.72/616,232.40
  6. Step 6: Final answer
    x = 568,207.80

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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.