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Finding the Fourth Proportional to 491,920.80, 738,010.80 and 176,344.80

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Solution

The fourth proportional to 491,920.80, 738,010.80 and 176,344.80 is: 264,563.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,920.80 : 738,010.80 = 176,344.80 : x
  2. Step 2: Convert to fraction form
    491,920.80/738,010.80 = 176,344.80/x
  3. Step 3: Cross multiply
    491,920.80x = 738,010.80 × 176,344.80
  4. Step 4: Simplify right side
    491,920.80x = 130,144,366,923.84
  5. Step 5: Solve for x
    x = 130,144,366,923.84/491,920.80
  6. Step 6: Final answer
    x = 264,563.66

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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.