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Finding the Fourth Proportional to 460,891.71, 691,337.58 and 145,373.22

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Solution

The fourth proportional to 460,891.71, 691,337.58 and 145,373.22 is: 218,059.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    460,891.71 : 691,337.58 = 145,373.22 : x
  2. Step 2: Convert to fraction form
    460,891.71/691,337.58 = 145,373.22/x
  3. Step 3: Cross multiply
    460,891.71x = 691,337.58 × 145,373.22
  4. Step 4: Simplify right side
    460,891.71x = 100,501,970,111.61
  5. Step 5: Solve for x
    x = 100,501,970,111.61/460,891.71
  6. Step 6: Final answer
    x = 218,059.83

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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.