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Finding the Fourth Proportional to 616,657.20, 924,856.20 and 261,682.80

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Solution

The fourth proportional to 616,657.20, 924,856.20 and 261,682.80 is: 392,469.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,657.20 : 924,856.20 = 261,682.80 : x
  2. Step 2: Convert to fraction form
    616,657.20/924,856.20 = 261,682.80/x
  3. Step 3: Cross multiply
    616,657.20x = 924,856.20 × 261,682.80
  4. Step 4: Simplify right side
    616,657.20x = 242,018,960,013.36
  5. Step 5: Solve for x
    x = 242,018,960,013.36/616,657.20
  6. Step 6: Final answer
    x = 392,469.20

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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.