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Finding the Fourth Proportional to 568,051.76, 783,665.61 and 326,278.91

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Solution

The fourth proportional to 568,051.76, 783,665.61 and 326,278.91 is: 450,123.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,051.76 : 783,665.61 = 326,278.91 : x
  2. Step 2: Convert to fraction form
    568,051.76/783,665.61 = 326,278.91/x
  3. Step 3: Cross multiply
    568,051.76x = 783,665.61 × 326,278.91
  4. Step 4: Simplify right side
    568,051.76x = 255,693,561,035.29
  5. Step 5: Solve for x
    x = 255,693,561,035.29/568,051.76
  6. Step 6: Final answer
    x = 450,123.70

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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.