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Finding the Fourth Proportional to 573,751.74, 791,761.53 and 312,098.36

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Solution

The fourth proportional to 573,751.74, 791,761.53 and 312,098.36 is: 430,687.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,751.74 : 791,761.53 = 312,098.36 : x
  2. Step 2: Convert to fraction form
    573,751.74/791,761.53 = 312,098.36/x
  3. Step 3: Cross multiply
    573,751.74x = 791,761.53 × 312,098.36
  4. Step 4: Simplify right side
    573,751.74x = 247,107,471,065.28
  5. Step 5: Solve for x
    x = 247,107,471,065.28/573,751.74
  6. Step 6: Final answer
    x = 430,687.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.