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Finding the Fourth Proportional to 719,253.20, 1,080,046.20 and 483,640.40

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Solution

The fourth proportional to 719,253.20, 1,080,046.20 and 483,640.40 is: 726,244.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,253.20 : 1,080,046.20 = 483,640.40 : x
  2. Step 2: Convert to fraction form
    719,253.20/1,080,046.20 = 483,640.40/x
  3. Step 3: Cross multiply
    719,253.20x = 1,080,046.20 × 483,640.40
  4. Step 4: Simplify right side
    719,253.20x = 522,353,976,186.48
  5. Step 5: Solve for x
    x = 522,353,976,186.48/719,253.20
  6. Step 6: Final answer
    x = 726,244.91

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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.