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Finding the Fourth Proportional to 454,462.80, 681,694.20 and 342,925.80

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Solution

The fourth proportional to 454,462.80, 681,694.20 and 342,925.80 is: 514,388.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,462.80 : 681,694.20 = 342,925.80 : x
  2. Step 2: Convert to fraction form
    454,462.80/681,694.20 = 342,925.80/x
  3. Step 3: Cross multiply
    454,462.80x = 681,694.20 × 342,925.80
  4. Step 4: Simplify right side
    454,462.80x = 233,770,528,890.36
  5. Step 5: Solve for x
    x = 233,770,528,890.36/454,462.80
  6. Step 6: Final answer
    x = 514,388.70

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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.