Home / 328,240.46-492,443.64-91,583

Finding the Fourth Proportional to 328,240.46, 492,443.64 and 91,583

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Solution

The fourth proportional to 328,240.46, 492,443.64 and 91,583 is: 137,397.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,240.46 : 492,443.64 = 91,583 : x
  2. Step 2: Convert to fraction form
    328,240.46/492,443.64 = 91,583/x
  3. Step 3: Cross multiply
    328,240.46x = 492,443.64 × 91,583
  4. Step 4: Simplify right side
    328,240.46x = 45,099,465,882.12
  5. Step 5: Solve for x
    x = 45,099,465,882.12/328,240.46
  6. Step 6: Final answer
    x = 137,397.64

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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.