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Finding the Fourth Proportional to 372,168.28, 513,373.56 and 234,127.68

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Solution

The fourth proportional to 372,168.28, 513,373.56 and 234,127.68 is: 322,958.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,168.28 : 513,373.56 = 234,127.68 : x
  2. Step 2: Convert to fraction form
    372,168.28/513,373.56 = 234,127.68/x
  3. Step 3: Cross multiply
    372,168.28x = 513,373.56 × 234,127.68
  4. Step 4: Simplify right side
    372,168.28x = 120,194,960,576.14
  5. Step 5: Solve for x
    x = 120,194,960,576.14/372,168.28
  6. Step 6: Final answer
    x = 322,958.64

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1.5x scale

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.