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Finding the Fourth Proportional to 316,079.47, 436,191.99 and 178,260.19

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Solution

The fourth proportional to 316,079.47, 436,191.99 and 178,260.19 is: 246,000.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,079.47 : 436,191.99 = 178,260.19 : x
  2. Step 2: Convert to fraction form
    316,079.47/436,191.99 = 178,260.19/x
  3. Step 3: Cross multiply
    316,079.47x = 436,191.99 × 178,260.19
  4. Step 4: Simplify right side
    316,079.47x = 77,755,667,708.50
  5. Step 5: Solve for x
    x = 77,755,667,708.50/316,079.47
  6. Step 6: Final answer
    x = 246,000.38

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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.