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Finding the Fourth Proportional to 522,699.24, 721,545.12 and 353,163

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Solution

The fourth proportional to 522,699.24, 721,545.12 and 353,163 is: 487,513.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,699.24 : 721,545.12 = 353,163 : x
  2. Step 2: Convert to fraction form
    522,699.24/721,545.12 = 353,163/x
  3. Step 3: Cross multiply
    522,699.24x = 721,545.12 × 353,163
  4. Step 4: Simplify right side
    522,699.24x = 254,823,039,214.56
  5. Step 5: Solve for x
    x = 254,823,039,214.56/522,699.24
  6. Step 6: Final answer
    x = 487,513.70

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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.