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Finding the Fourth Proportional to 508,687.80, 763,031.70 and 176,297.40

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Solution

The fourth proportional to 508,687.80, 763,031.70 and 176,297.40 is: 264,446.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,687.80 : 763,031.70 = 176,297.40 : x
  2. Step 2: Convert to fraction form
    508,687.80/763,031.70 = 176,297.40/x
  3. Step 3: Cross multiply
    508,687.80x = 763,031.70 × 176,297.40
  4. Step 4: Simplify right side
    508,687.80x = 134,520,504,827.58
  5. Step 5: Solve for x
    x = 134,520,504,827.58/508,687.80
  6. Step 6: Final answer
    x = 264,446.10

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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.