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Finding the Fourth Proportional to 484,459.80, 726,689.70 and 247,723.80

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Solution

The fourth proportional to 484,459.80, 726,689.70 and 247,723.80 is: 371,585.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,459.80 : 726,689.70 = 247,723.80 : x
  2. Step 2: Convert to fraction form
    484,459.80/726,689.70 = 247,723.80/x
  3. Step 3: Cross multiply
    484,459.80x = 726,689.70 × 247,723.80
  4. Step 4: Simplify right side
    484,459.80x = 180,018,333,904.86
  5. Step 5: Solve for x
    x = 180,018,333,904.86/484,459.80
  6. Step 6: Final answer
    x = 371,585.70

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Similar ratio
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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.