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Finding the Fourth Proportional to 356,511.20, 534,406.95 and 223,484.87

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Solution

The fourth proportional to 356,511.20, 534,406.95 and 223,484.87 is: 335,001.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,511.20 : 534,406.95 = 223,484.87 : x
  2. Step 2: Convert to fraction form
    356,511.20/534,406.95 = 223,484.87/x
  3. Step 3: Cross multiply
    356,511.20x = 534,406.95 × 223,484.87
  4. Step 4: Simplify right side
    356,511.20x = 119,431,869,083.86
  5. Step 5: Solve for x
    x = 119,431,869,083.86/356,511.20
  6. Step 6: Final answer
    x = 335,001.74

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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.