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Finding the Fourth Proportional to 492,381.80, 738,572.70 and 176,887.40

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Solution

The fourth proportional to 492,381.80, 738,572.70 and 176,887.40 is: 265,331.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,381.80 : 738,572.70 = 176,887.40 : x
  2. Step 2: Convert to fraction form
    492,381.80/738,572.70 = 176,887.40/x
  3. Step 3: Cross multiply
    492,381.80x = 738,572.70 × 176,887.40
  4. Step 4: Simplify right side
    492,381.80x = 130,644,204,613.98
  5. Step 5: Solve for x
    x = 130,644,204,613.98/492,381.80
  6. Step 6: Final answer
    x = 265,331.10

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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.