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Finding the Fourth Proportional to 488,461.20, 732,691.80 and 329,028.90

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Solution

The fourth proportional to 488,461.20, 732,691.80 and 329,028.90 is: 493,543.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,461.20 : 732,691.80 = 329,028.90 : x
  2. Step 2: Convert to fraction form
    488,461.20/732,691.80 = 329,028.90/x
  3. Step 3: Cross multiply
    488,461.20x = 732,691.80 × 329,028.90
  4. Step 4: Simplify right side
    488,461.20x = 241,076,776,993.02
  5. Step 5: Solve for x
    x = 241,076,776,993.02/488,461.20
  6. Step 6: Final answer
    x = 493,543.35

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Double scale
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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.