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Finding the Fourth Proportional to 526,534.20, 789,801.30 and 313,957.80

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Solution

The fourth proportional to 526,534.20, 789,801.30 and 313,957.80 is: 470,936.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,534.20 : 789,801.30 = 313,957.80 : x
  2. Step 2: Convert to fraction form
    526,534.20/789,801.30 = 313,957.80/x
  3. Step 3: Cross multiply
    526,534.20x = 789,801.30 × 313,957.80
  4. Step 4: Simplify right side
    526,534.20x = 247,964,278,585.14
  5. Step 5: Solve for x
    x = 247,964,278,585.14/526,534.20
  6. Step 6: Final answer
    x = 470,936.70

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Similar ratio
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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.