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Finding the Fourth Proportional to 625,079.20, 937,191.96 and 300,696.16

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Solution

The fourth proportional to 625,079.20, 937,191.96 and 300,696.16 is: 450,838.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,079.20 : 937,191.96 = 300,696.16 : x
  2. Step 2: Convert to fraction form
    625,079.20/937,191.96 = 300,696.16/x
  3. Step 3: Cross multiply
    625,079.20x = 937,191.96 × 300,696.16
  4. Step 4: Simplify right side
    625,079.20x = 281,810,023,554.87
  5. Step 5: Solve for x
    x = 281,810,023,554.87/625,079.20
  6. Step 6: Final answer
    x = 450,838.91

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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.