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Finding the Fourth Proportional to 436,256.76, 654,385.32 and 136,760.88

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Solution

The fourth proportional to 436,256.76, 654,385.32 and 136,760.88 is: 205,141.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,256.76 : 654,385.32 = 136,760.88 : x
  2. Step 2: Convert to fraction form
    436,256.76/654,385.32 = 136,760.88/x
  3. Step 3: Cross multiply
    436,256.76x = 654,385.32 × 136,760.88
  4. Step 4: Simplify right side
    436,256.76x = 89,494,312,222.28
  5. Step 5: Solve for x
    x = 89,494,312,222.28/436,256.76
  6. Step 6: Final answer
    x = 205,141.38

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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.