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Finding the Fourth Proportional to 372,059.13, 513,426.71 and 219,103.77

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Solution

The fourth proportional to 372,059.13, 513,426.71 and 219,103.77 is: 302,354.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,059.13 : 513,426.71 = 219,103.77 : x
  2. Step 2: Convert to fraction form
    372,059.13/513,426.71 = 219,103.77/x
  3. Step 3: Cross multiply
    372,059.13x = 513,426.71 × 219,103.77
  4. Step 4: Simplify right side
    372,059.13x = 112,493,726,684.18
  5. Step 5: Solve for x
    x = 112,493,726,684.18/372,059.13
  6. Step 6: Final answer
    x = 302,354.43

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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.