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Finding the Fourth Proportional to 276,700.60, 415,050.90 and 156,634.30

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Solution

The fourth proportional to 276,700.60, 415,050.90 and 156,634.30 is: 234,951.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,700.60 : 415,050.90 = 156,634.30 : x
  2. Step 2: Convert to fraction form
    276,700.60/415,050.90 = 156,634.30/x
  3. Step 3: Cross multiply
    276,700.60x = 415,050.90 × 156,634.30
  4. Step 4: Simplify right side
    276,700.60x = 65,011,207,185.87
  5. Step 5: Solve for x
    x = 65,011,207,185.87/276,700.60
  6. Step 6: Final answer
    x = 234,951.45

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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.