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Finding the Fourth Proportional to 350,834.60, 526,251.90 and 321,804.20

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Solution

The fourth proportional to 350,834.60, 526,251.90 and 321,804.20 is: 482,706.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,834.60 : 526,251.90 = 321,804.20 : x
  2. Step 2: Convert to fraction form
    350,834.60/526,251.90 = 321,804.20/x
  3. Step 3: Cross multiply
    350,834.60x = 526,251.90 × 321,804.20
  4. Step 4: Simplify right side
    350,834.60x = 169,350,071,677.98
  5. Step 5: Solve for x
    x = 169,350,071,677.98/350,834.60
  6. Step 6: Final answer
    x = 482,706.30

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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.