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Finding the Fourth Proportional to 625,543.58, 863,251.01 and 339,063.59

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Solution

The fourth proportional to 625,543.58, 863,251.01 and 339,063.59 is: 467,908.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,543.58 : 863,251.01 = 339,063.59 : x
  2. Step 2: Convert to fraction form
    625,543.58/863,251.01 = 339,063.59/x
  3. Step 3: Cross multiply
    625,543.58x = 863,251.01 × 339,063.59
  4. Step 4: Simplify right side
    625,543.58x = 292,696,980,510.15
  5. Step 5: Solve for x
    x = 292,696,980,510.15/625,543.58
  6. Step 6: Final answer
    x = 467,908.22

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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.