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Finding the Fourth Proportional to 488,460.60, 732,690.90 and 329,028.30

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Solution

The fourth proportional to 488,460.60, 732,690.90 and 329,028.30 is: 493,542.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,460.60 : 732,690.90 = 329,028.30 : x
  2. Step 2: Convert to fraction form
    488,460.60/732,690.90 = 329,028.30/x
  3. Step 3: Cross multiply
    488,460.60x = 732,690.90 × 329,028.30
  4. Step 4: Simplify right side
    488,460.60x = 241,076,041,252.47
  5. Step 5: Solve for x
    x = 241,076,041,252.47/488,460.60
  6. Step 6: Final answer
    x = 493,542.45

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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.