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Finding the Fourth Proportional to 363,430.14, 545,256.87 and 186,061.65

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Solution

The fourth proportional to 363,430.14, 545,256.87 and 186,061.65 is: 279,149.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,430.14 : 545,256.87 = 186,061.65 : x
  2. Step 2: Convert to fraction form
    363,430.14/545,256.87 = 186,061.65/x
  3. Step 3: Cross multiply
    363,430.14x = 545,256.87 × 186,061.65
  4. Step 4: Simplify right side
    363,430.14x = 101,451,392,906.04
  5. Step 5: Solve for x
    x = 101,451,392,906.04/363,430.14
  6. Step 6: Final answer
    x = 279,149.64

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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.