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Finding the Fourth Proportional to 675,943.20, 932,737.77 and 403,956.93

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Solution

The fourth proportional to 675,943.20, 932,737.77 and 403,956.93 is: 557,422.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,943.20 : 932,737.77 = 403,956.93 : x
  2. Step 2: Convert to fraction form
    675,943.20/932,737.77 = 403,956.93/x
  3. Step 3: Cross multiply
    675,943.20x = 932,737.77 × 403,956.93
  4. Step 4: Simplify right side
    675,943.20x = 376,785,886,064.25
  5. Step 5: Solve for x
    x = 376,785,886,064.25/675,943.20
  6. Step 6: Final answer
    x = 557,422.41

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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.