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Finding the Fourth Proportional to 458,044.60, 687,066.90 and 234,095.80

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Solution

The fourth proportional to 458,044.60, 687,066.90 and 234,095.80 is: 351,143.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,044.60 : 687,066.90 = 234,095.80 : x
  2. Step 2: Convert to fraction form
    458,044.60/687,066.90 = 234,095.80/x
  3. Step 3: Cross multiply
    458,044.60x = 687,066.90 × 234,095.80
  4. Step 4: Simplify right side
    458,044.60x = 160,839,475,609.02
  5. Step 5: Solve for x
    x = 160,839,475,609.02/458,044.60
  6. Step 6: Final answer
    x = 351,143.70

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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.