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Finding the Fourth Proportional to 491,839.20, 737,360.88 and 207,345.84

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Solution

The fourth proportional to 491,839.20, 737,360.88 and 207,345.84 is: 310,851.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,839.20 : 737,360.88 = 207,345.84 : x
  2. Step 2: Convert to fraction form
    491,839.20/737,360.88 = 207,345.84/x
  3. Step 3: Cross multiply
    491,839.20x = 737,360.88 × 207,345.84
  4. Step 4: Simplify right side
    491,839.20x = 152,888,711,046.74
  5. Step 5: Solve for x
    x = 152,888,711,046.74/491,839.20
  6. Step 6: Final answer
    x = 310,851.01

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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.