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Finding the Fourth Proportional to 581,049.60, 871,574.40 and 206,937.60

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Solution

The fourth proportional to 581,049.60, 871,574.40 and 206,937.60 is: 310,406.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    581,049.60 : 871,574.40 = 206,937.60 : x
  2. Step 2: Convert to fraction form
    581,049.60/871,574.40 = 206,937.60/x
  3. Step 3: Cross multiply
    581,049.60x = 871,574.40 × 206,937.60
  4. Step 4: Simplify right side
    581,049.60x = 180,361,514,557.44
  5. Step 5: Solve for x
    x = 180,361,514,557.44/581,049.60
  6. Step 6: Final answer
    x = 310,406.40

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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.