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Finding the Fourth Proportional to 352,352.40, 486,133.20 and 197,280.88

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Solution

The fourth proportional to 352,352.40, 486,133.20 and 197,280.88 is: 272,184.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,352.40 : 486,133.20 = 197,280.88 : x
  2. Step 2: Convert to fraction form
    352,352.40/486,133.20 = 197,280.88/x
  3. Step 3: Cross multiply
    352,352.40x = 486,133.20 × 197,280.88
  4. Step 4: Simplify right side
    352,352.40x = 95,904,785,493.22
  5. Step 5: Solve for x
    x = 95,904,785,493.22/352,352.40
  6. Step 6: Final answer
    x = 272,184.28

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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.