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Finding the Fourth Proportional to 458,046.60, 687,069.90 and 234,097.80

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Solution

The fourth proportional to 458,046.60, 687,069.90 and 234,097.80 is: 351,146.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,046.60 : 687,069.90 = 234,097.80 : x
  2. Step 2: Convert to fraction form
    458,046.60/687,069.90 = 234,097.80/x
  3. Step 3: Cross multiply
    458,046.60x = 687,069.90 × 234,097.80
  4. Step 4: Simplify right side
    458,046.60x = 160,841,552,036.22
  5. Step 5: Solve for x
    x = 160,841,552,036.22/458,046.60
  6. Step 6: Final answer
    x = 351,146.70

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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.