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Finding the Fourth Proportional to 508,760.80, 763,141.20 and 176,370.40

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Solution

The fourth proportional to 508,760.80, 763,141.20 and 176,370.40 is: 264,555.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,760.80 : 763,141.20 = 176,370.40 : x
  2. Step 2: Convert to fraction form
    508,760.80/763,141.20 = 176,370.40/x
  3. Step 3: Cross multiply
    508,760.80x = 763,141.20 × 176,370.40
  4. Step 4: Simplify right side
    508,760.80x = 134,595,518,700.48
  5. Step 5: Solve for x
    x = 134,595,518,700.48/508,760.80
  6. Step 6: Final answer
    x = 264,555.60

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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.