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Finding the Fourth Proportional to 568,672.36, 783,832.20 and 403,155.32

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Solution

The fourth proportional to 568,672.36, 783,832.20 and 403,155.32 is: 555,691.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,672.36 : 783,832.20 = 403,155.32 : x
  2. Step 2: Convert to fraction form
    568,672.36/783,832.20 = 403,155.32/x
  3. Step 3: Cross multiply
    568,672.36x = 783,832.20 × 403,155.32
  4. Step 4: Simplify right side
    568,672.36x = 316,006,121,417.30
  5. Step 5: Solve for x
    x = 316,006,121,417.30/568,672.36
  6. Step 6: Final answer
    x = 555,691.02

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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.