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Finding the Fourth Proportional to 616,288.40, 924,432.60 and 547,859.60

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Solution

The fourth proportional to 616,288.40, 924,432.60 and 547,859.60 is: 821,789.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,288.40 : 924,432.60 = 547,859.60 : x
  2. Step 2: Convert to fraction form
    616,288.40/924,432.60 = 547,859.60/x
  3. Step 3: Cross multiply
    616,288.40x = 924,432.60 × 547,859.60
  4. Step 4: Simplify right side
    616,288.40x = 506,459,274,462.96
  5. Step 5: Solve for x
    x = 506,459,274,462.96/616,288.40
  6. Step 6: Final answer
    x = 821,789.40

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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.