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Finding the Fourth Proportional to 616,258.80, 924,388.20 and 521,780.40

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Solution

The fourth proportional to 616,258.80, 924,388.20 and 521,780.40 is: 782,670.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,258.80 : 924,388.20 = 521,780.40 : x
  2. Step 2: Convert to fraction form
    616,258.80/924,388.20 = 521,780.40/x
  3. Step 3: Cross multiply
    616,258.80x = 924,388.20 × 521,780.40
  4. Step 4: Simplify right side
    616,258.80x = 482,327,644,751.28
  5. Step 5: Solve for x
    x = 482,327,644,751.28/616,258.80
  6. Step 6: Final answer
    x = 782,670.60

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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.