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Finding the Fourth Proportional to 616,008.40, 924,142.20 and 260,839.60

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Solution

The fourth proportional to 616,008.40, 924,142.20 and 260,839.60 is: 391,314.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,008.40 : 924,142.20 = 260,839.60 : x
  2. Step 2: Convert to fraction form
    616,008.40/924,142.20 = 260,839.60/x
  3. Step 3: Cross multiply
    616,008.40x = 924,142.20 × 260,839.60
  4. Step 4: Simplify right side
    616,008.40x = 241,052,881,791.12
  5. Step 5: Solve for x
    x = 241,052,881,791.12/616,008.40
  6. Step 6: Final answer
    x = 391,314.28

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1.5x scale

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.