Home / 409,277.92-614,000.40-172,620.16

Finding the Fourth Proportional to 409,277.92, 614,000.40 and 172,620.16

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Solution

The fourth proportional to 409,277.92, 614,000.40 and 172,620.16 is: 258,965.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,277.92 : 614,000.40 = 172,620.16 : x
  2. Step 2: Convert to fraction form
    409,277.92/614,000.40 = 172,620.16/x
  3. Step 3: Cross multiply
    409,277.92x = 614,000.40 × 172,620.16
  4. Step 4: Simplify right side
    409,277.92x = 105,988,847,288.06
  5. Step 5: Solve for x
    x = 105,988,847,288.06/409,277.92
  6. Step 6: Final answer
    x = 258,965.47

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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.