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Finding the Fourth Proportional to 276,409.60, 381,411.30 and 174,396.58

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Solution

The fourth proportional to 276,409.60, 381,411.30 and 174,396.58 is: 240,645.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,409.60 : 381,411.30 = 174,396.58 : x
  2. Step 2: Convert to fraction form
    276,409.60/381,411.30 = 174,396.58/x
  3. Step 3: Cross multiply
    276,409.60x = 381,411.30 × 174,396.58
  4. Step 4: Simplify right side
    276,409.60x = 66,516,826,293.35
  5. Step 5: Solve for x
    x = 66,516,826,293.35/276,409.60
  6. Step 6: Final answer
    x = 240,645.86

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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.