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Finding the Fourth Proportional to 493,793.38, 681,432.76 and 276,001.76

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Solution

The fourth proportional to 493,793.38, 681,432.76 and 276,001.76 is: 380,881.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,793.38 : 681,432.76 = 276,001.76 : x
  2. Step 2: Convert to fraction form
    493,793.38/681,432.76 = 276,001.76/x
  3. Step 3: Cross multiply
    493,793.38x = 681,432.76 × 276,001.76
  4. Step 4: Simplify right side
    493,793.38x = 188,076,641,081.66
  5. Step 5: Solve for x
    x = 188,076,641,081.66/493,793.38
  6. Step 6: Final answer
    x = 380,881.25

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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.