Home / 409,217.12-564,734.96-225,463.24

Finding the Fourth Proportional to 409,217.12, 564,734.96 and 225,463.24

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Solution

The fourth proportional to 409,217.12, 564,734.96 and 225,463.24 is: 311,147.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,217.12 : 564,734.96 = 225,463.24 : x
  2. Step 2: Convert to fraction form
    409,217.12/564,734.96 = 225,463.24/x
  3. Step 3: Cross multiply
    409,217.12x = 564,734.96 × 225,463.24
  4. Step 4: Simplify right side
    409,217.12x = 127,326,973,822.87
  5. Step 5: Solve for x
    x = 127,326,973,822.87/409,217.12
  6. Step 6: Final answer
    x = 311,147.72

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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.