Home / 457,932.24-686,758.43-316,685.25

Finding the Fourth Proportional to 457,932.24, 686,758.43 and 316,685.25

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Solution

The fourth proportional to 457,932.24, 686,758.43 and 316,685.25 is: 474,931.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,932.24 : 686,758.43 = 316,685.25 : x
  2. Step 2: Convert to fraction form
    457,932.24/686,758.43 = 316,685.25/x
  3. Step 3: Cross multiply
    457,932.24x = 686,758.43 × 316,685.25
  4. Step 4: Simplify right side
    457,932.24x = 217,486,265,885.87
  5. Step 5: Solve for x
    x = 217,486,265,885.87/457,932.24
  6. Step 6: Final answer
    x = 474,931.11

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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.