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Finding the Fourth Proportional to 276,694.60, 415,041.90 and 156,628.30

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Solution

The fourth proportional to 276,694.60, 415,041.90 and 156,628.30 is: 234,942.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,694.60 : 415,041.90 = 156,628.30 : x
  2. Step 2: Convert to fraction form
    276,694.60/415,041.90 = 156,628.30/x
  3. Step 3: Cross multiply
    276,694.60x = 415,041.90 × 156,628.30
  4. Step 4: Simplify right side
    276,694.60x = 65,007,307,225.77
  5. Step 5: Solve for x
    x = 65,007,307,225.77/276,694.60
  6. Step 6: Final answer
    x = 234,942.45

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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.