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Finding the Fourth Proportional to 482,899.90, 724,349.85 and 216,669.10

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Solution

The fourth proportional to 482,899.90, 724,349.85 and 216,669.10 is: 325,003.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,899.90 : 724,349.85 = 216,669.10 : x
  2. Step 2: Convert to fraction form
    482,899.90/724,349.85 = 216,669.10/x
  3. Step 3: Cross multiply
    482,899.90x = 724,349.85 × 216,669.10
  4. Step 4: Simplify right side
    482,899.90x = 156,944,230,084.64
  5. Step 5: Solve for x
    x = 156,944,230,084.64/482,899.90
  6. Step 6: Final answer
    x = 325,003.65

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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.