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Finding the Fourth Proportional to 560,387.12, 839,496.90 and 469,348.97

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Solution

The fourth proportional to 560,387.12, 839,496.90 and 469,348.97 is: 703,115.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,387.12 : 839,496.90 = 469,348.97 : x
  2. Step 2: Convert to fraction form
    560,387.12/839,496.90 = 469,348.97/x
  3. Step 3: Cross multiply
    560,387.12x = 839,496.90 × 469,348.97
  4. Step 4: Simplify right side
    560,387.12x = 394,017,001,135.71
  5. Step 5: Solve for x
    x = 394,017,001,135.71/560,387.12
  6. Step 6: Final answer
    x = 703,115.74

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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.