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Finding the Fourth Proportional to 491,712.10, 737,568.15 and 484,713.70

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Solution

The fourth proportional to 491,712.10, 737,568.15 and 484,713.70 is: 727,070.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,712.10 : 737,568.15 = 484,713.70 : x
  2. Step 2: Convert to fraction form
    491,712.10/737,568.15 = 484,713.70/x
  3. Step 3: Cross multiply
    491,712.10x = 737,568.15 × 484,713.70
  4. Step 4: Simplify right side
    491,712.10x = 357,509,386,988.66
  5. Step 5: Solve for x
    x = 357,509,386,988.66/491,712.10
  6. Step 6: Final answer
    x = 727,070.55

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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.