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Finding the Fourth Proportional to 488,443.20, 732,664.80 and 329,010.90

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Solution

The fourth proportional to 488,443.20, 732,664.80 and 329,010.90 is: 493,516.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,443.20 : 732,664.80 = 329,010.90 : x
  2. Step 2: Convert to fraction form
    488,443.20/732,664.80 = 329,010.90/x
  3. Step 3: Cross multiply
    488,443.20x = 732,664.80 × 329,010.90
  4. Step 4: Simplify right side
    488,443.20x = 241,054,705,246.32
  5. Step 5: Solve for x
    x = 241,054,705,246.32/488,443.20
  6. Step 6: Final answer
    x = 493,516.35

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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.