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Finding the Fourth Proportional to 488,712.60, 733,068.90 and 329,280.30

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Solution

The fourth proportional to 488,712.60, 733,068.90 and 329,280.30 is: 493,920.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,712.60 : 733,068.90 = 329,280.30 : x
  2. Step 2: Convert to fraction form
    488,712.60/733,068.90 = 329,280.30/x
  3. Step 3: Cross multiply
    488,712.60x = 733,068.90 × 329,280.30
  4. Step 4: Simplify right side
    488,712.60x = 241,385,147,312.67
  5. Step 5: Solve for x
    x = 241,385,147,312.67/488,712.60
  6. Step 6: Final answer
    x = 493,920.45

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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.