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Finding the Fourth Proportional to 341,906.90, 513,281.55 and 215,546.90

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Solution

The fourth proportional to 341,906.90, 513,281.55 and 215,546.90 is: 323,585.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,906.90 : 513,281.55 = 215,546.90 : x
  2. Step 2: Convert to fraction form
    341,906.90/513,281.55 = 215,546.90/x
  3. Step 3: Cross multiply
    341,906.90x = 513,281.55 × 215,546.90
  4. Step 4: Simplify right side
    341,906.90x = 110,636,246,929.70
  5. Step 5: Solve for x
    x = 110,636,246,929.70/341,906.90
  6. Step 6: Final answer
    x = 323,585.89

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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.