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Finding the Fourth Proportional to 488,347.40, 732,521.10 and 310,981.70

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Solution

The fourth proportional to 488,347.40, 732,521.10 and 310,981.70 is: 466,472.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,347.40 : 732,521.10 = 310,981.70 : x
  2. Step 2: Convert to fraction form
    488,347.40/732,521.10 = 310,981.70/x
  3. Step 3: Cross multiply
    488,347.40x = 732,521.10 × 310,981.70
  4. Step 4: Simplify right side
    488,347.40x = 227,800,656,963.87
  5. Step 5: Solve for x
    x = 227,800,656,963.87/488,347.40
  6. Step 6: Final answer
    x = 466,472.55

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Similar ratio
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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.