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Finding the Fourth Proportional to 484,234.60, 726,611.10 and 203,780.20

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Solution

The fourth proportional to 484,234.60, 726,611.10 and 203,780.20 is: 305,779.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,234.60 : 726,611.10 = 203,780.20 : x
  2. Step 2: Convert to fraction form
    484,234.60/726,611.10 = 203,780.20/x
  3. Step 3: Cross multiply
    484,234.60x = 726,611.10 × 203,780.20
  4. Step 4: Simplify right side
    484,234.60x = 148,068,955,280.22
  5. Step 5: Solve for x
    x = 148,068,955,280.22/484,234.60
  6. Step 6: Final answer
    x = 305,779.38

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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.