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Finding the Fourth Proportional to 374,113.60, 516,123.92 and 276,231.42

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Solution

The fourth proportional to 374,113.60, 516,123.92 and 276,231.42 is: 381,086.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,113.60 : 516,123.92 = 276,231.42 : x
  2. Step 2: Convert to fraction form
    374,113.60/516,123.92 = 276,231.42/x
  3. Step 3: Cross multiply
    374,113.60x = 516,123.92 × 276,231.42
  4. Step 4: Simplify right side
    374,113.60x = 142,569,643,317.57
  5. Step 5: Solve for x
    x = 142,569,643,317.57/374,113.60
  6. Step 6: Final answer
    x = 381,086.51

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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.