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Finding the Fourth Proportional to 486,974.40, 730,530.72 and 150,042.40

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Solution

The fourth proportional to 486,974.40, 730,530.72 and 150,042.40 is: 225,084.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,974.40 : 730,530.72 = 150,042.40 : x
  2. Step 2: Convert to fraction form
    486,974.40/730,530.72 = 150,042.40/x
  3. Step 3: Cross multiply
    486,974.40x = 730,530.72 × 150,042.40
  4. Step 4: Simplify right side
    486,974.40x = 109,610,582,502.53
  5. Step 5: Solve for x
    x = 109,610,582,502.53/486,974.40
  6. Step 6: Final answer
    x = 225,084.90

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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.