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Finding the Fourth Proportional to 387,079.41, 579,963.92 and 237,006.33

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Solution

The fourth proportional to 387,079.41, 579,963.92 and 237,006.33 is: 355,108.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,079.41 : 579,963.92 = 237,006.33 : x
  2. Step 2: Convert to fraction form
    387,079.41/579,963.92 = 237,006.33/x
  3. Step 3: Cross multiply
    387,079.41x = 579,963.92 × 237,006.33
  4. Step 4: Simplify right side
    387,079.41x = 137,455,120,482.61
  5. Step 5: Solve for x
    x = 137,455,120,482.61/387,079.41
  6. Step 6: Final answer
    x = 355,108.33

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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.