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Finding the Fourth Proportional to 341,609.70, 512,414.55 and 315,948.90

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Solution

The fourth proportional to 341,609.70, 512,414.55 and 315,948.90 is: 473,923.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,609.70 : 512,414.55 = 315,948.90 : x
  2. Step 2: Convert to fraction form
    341,609.70/512,414.55 = 315,948.90/x
  3. Step 3: Cross multiply
    341,609.70x = 512,414.55 × 315,948.90
  4. Step 4: Simplify right side
    341,609.70x = 161,896,813,416.50
  5. Step 5: Solve for x
    x = 161,896,813,416.50/341,609.70
  6. Step 6: Final answer
    x = 473,923.35

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Double scale
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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.