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Finding the Fourth Proportional to 353,562.33, 530,343.51 and 291,101.61

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Solution

The fourth proportional to 353,562.33, 530,343.51 and 291,101.61 is: 436,652.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,562.33 : 530,343.51 = 291,101.61 : x
  2. Step 2: Convert to fraction form
    353,562.33/530,343.51 = 291,101.61/x
  3. Step 3: Cross multiply
    353,562.33x = 530,343.51 × 291,101.61
  4. Step 4: Simplify right side
    353,562.33x = 154,383,849,614.05
  5. Step 5: Solve for x
    x = 154,383,849,614.05/353,562.33
  6. Step 6: Final answer
    x = 436,652.43

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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.