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Finding the Fourth Proportional to 296,630.60, 444,902.70 and 86,246.60

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Solution

The fourth proportional to 296,630.60, 444,902.70 and 86,246.60 is: 129,357.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,630.60 : 444,902.70 = 86,246.60 : x
  2. Step 2: Convert to fraction form
    296,630.60/444,902.70 = 86,246.60/x
  3. Step 3: Cross multiply
    296,630.60x = 444,902.70 × 86,246.60
  4. Step 4: Simplify right side
    296,630.60x = 38,371,345,205.82
  5. Step 5: Solve for x
    x = 38,371,345,205.82/296,630.60
  6. Step 6: Final answer
    x = 129,357.34

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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.