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Finding the Fourth Proportional to 540,671.28, 811,456.20 and 288,227.76

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Solution

The fourth proportional to 540,671.28, 811,456.20 and 288,227.76 is: 432,581.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,671.28 : 811,456.20 = 288,227.76 : x
  2. Step 2: Convert to fraction form
    540,671.28/811,456.20 = 288,227.76/x
  3. Step 3: Cross multiply
    540,671.28x = 811,456.20 × 288,227.76
  4. Step 4: Simplify right side
    540,671.28x = 233,884,202,864.11
  5. Step 5: Solve for x
    x = 233,884,202,864.11/540,671.28
  6. Step 6: Final answer
    x = 432,581.15

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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.