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Finding the Fourth Proportional to 353,560.83, 530,341.25 and 291,100.11

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Solution

The fourth proportional to 353,560.83, 530,341.25 and 291,100.11 is: 436,650.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,560.83 : 530,341.25 = 291,100.11 : x
  2. Step 2: Convert to fraction form
    353,560.83/530,341.25 = 291,100.11/x
  3. Step 3: Cross multiply
    353,560.83x = 530,341.25 × 291,100.11
  4. Step 4: Simplify right side
    353,560.83x = 154,382,394,757.04
  5. Step 5: Solve for x
    x = 154,382,394,757.04/353,560.83
  6. Step 6: Final answer
    x = 436,650.17

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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.