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Finding the Fourth Proportional to 491,561.61, 737,629.02 and 207,234.74

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Solution

The fourth proportional to 491,561.61, 737,629.02 and 207,234.74 is: 310,972.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,561.61 : 737,629.02 = 207,234.74 : x
  2. Step 2: Convert to fraction form
    491,561.61/737,629.02 = 207,234.74/x
  3. Step 3: Cross multiply
    491,561.61x = 737,629.02 × 207,234.74
  4. Step 4: Simplify right side
    491,561.61x = 152,862,354,488.01
  5. Step 5: Solve for x
    x = 152,862,354,488.01/491,561.61
  6. Step 6: Final answer
    x = 310,972.93

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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.