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Finding the Fourth Proportional to 488,292.60, 732,438.90 and 404,311.80

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Solution

The fourth proportional to 488,292.60, 732,438.90 and 404,311.80 is: 606,467.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,292.60 : 732,438.90 = 404,311.80 : x
  2. Step 2: Convert to fraction form
    488,292.60/732,438.90 = 404,311.80/x
  3. Step 3: Cross multiply
    488,292.60x = 732,438.90 × 404,311.80
  4. Step 4: Simplify right side
    488,292.60x = 296,133,690,049.02
  5. Step 5: Solve for x
    x = 296,133,690,049.02/488,292.60
  6. Step 6: Final answer
    x = 606,467.70

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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.