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Finding the Fourth Proportional to 625,012.45, 937,866.15 and 305,168.23

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Solution

The fourth proportional to 625,012.45, 937,866.15 and 305,168.23 is: 457,922.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,012.45 : 937,866.15 = 305,168.23 : x
  2. Step 2: Convert to fraction form
    625,012.45/937,866.15 = 305,168.23/x
  3. Step 3: Cross multiply
    625,012.45x = 937,866.15 × 305,168.23
  4. Step 4: Simplify right side
    625,012.45x = 286,206,952,972.42
  5. Step 5: Solve for x
    x = 286,206,952,972.42/625,012.45
  6. Step 6: Final answer
    x = 457,922.00

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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.