Home / 412,733.79-619,100.73-272,459.61

Finding the Fourth Proportional to 412,733.79, 619,100.73 and 272,459.61

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Solution

The fourth proportional to 412,733.79, 619,100.73 and 272,459.61 is: 408,689.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,733.79 : 619,100.73 = 272,459.61 : x
  2. Step 2: Convert to fraction form
    412,733.79/619,100.73 = 272,459.61/x
  3. Step 3: Cross multiply
    412,733.79x = 619,100.73 × 272,459.61
  4. Step 4: Simplify right side
    412,733.79x = 168,679,943,446.52
  5. Step 5: Solve for x
    x = 168,679,943,446.52/412,733.79
  6. Step 6: Final answer
    x = 408,689.44

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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.