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Finding the Fourth Proportional to 416,923.78, 575,190.45 and 271,898.50

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Solution

The fourth proportional to 416,923.78, 575,190.45 and 271,898.50 is: 375,112.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,923.78 : 575,190.45 = 271,898.50 : x
  2. Step 2: Convert to fraction form
    416,923.78/575,190.45 = 271,898.50/x
  3. Step 3: Cross multiply
    416,923.78x = 575,190.45 × 271,898.50
  4. Step 4: Simplify right side
    416,923.78x = 156,393,420,569.33
  5. Step 5: Solve for x
    x = 156,393,420,569.33/416,923.78
  6. Step 6: Final answer
    x = 375,112.74

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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.