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Finding the Fourth Proportional to 358,415.28, 537,247.44 and 133,685.28

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Solution

The fourth proportional to 358,415.28, 537,247.44 and 133,685.28 is: 200,387.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,415.28 : 537,247.44 = 133,685.28 : x
  2. Step 2: Convert to fraction form
    358,415.28/537,247.44 = 133,685.28/x
  3. Step 3: Cross multiply
    358,415.28x = 537,247.44 × 133,685.28
  4. Step 4: Simplify right side
    358,415.28x = 71,822,074,445.68
  5. Step 5: Solve for x
    x = 71,822,074,445.68/358,415.28
  6. Step 6: Final answer
    x = 200,387.87

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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.