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Finding the Fourth Proportional to 393,679.14, 590,167.10 and 153,737.22

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Solution

The fourth proportional to 393,679.14, 590,167.10 and 153,737.22 is: 230,468.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,679.14 : 590,167.10 = 153,737.22 : x
  2. Step 2: Convert to fraction form
    393,679.14/590,167.10 = 153,737.22/x
  3. Step 3: Cross multiply
    393,679.14x = 590,167.10 × 153,737.22
  4. Step 4: Simplify right side
    393,679.14x = 90,730,649,289.46
  5. Step 5: Solve for x
    x = 90,730,649,289.46/393,679.14
  6. Step 6: Final answer
    x = 230,468.52

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1.5x scale

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.