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Finding the Fourth Proportional to 511,592.59, 767,385.78 and 132,512.32

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Solution

The fourth proportional to 511,592.59, 767,385.78 and 132,512.32 is: 198,767.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,592.59 : 767,385.78 = 132,512.32 : x
  2. Step 2: Convert to fraction form
    511,592.59/767,385.78 = 132,512.32/x
  3. Step 3: Cross multiply
    511,592.59x = 767,385.78 × 132,512.32
  4. Step 4: Simplify right side
    511,592.59x = 101,688,070,042.81
  5. Step 5: Solve for x
    x = 101,688,070,042.81/511,592.59
  6. Step 6: Final answer
    x = 198,767.68

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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.