Home / 539,724.80-809,587.20-165,766.40

Finding the Fourth Proportional to 539,724.80, 809,587.20 and 165,766.40

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Solution

The fourth proportional to 539,724.80, 809,587.20 and 165,766.40 is: 248,649.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,724.80 : 809,587.20 = 165,766.40 : x
  2. Step 2: Convert to fraction form
    539,724.80/809,587.20 = 165,766.40/x
  3. Step 3: Cross multiply
    539,724.80x = 809,587.20 × 165,766.40
  4. Step 4: Simplify right side
    539,724.80x = 134,202,355,630.08
  5. Step 5: Solve for x
    x = 134,202,355,630.08/539,724.80
  6. Step 6: Final answer
    x = 248,649.60

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Double scale
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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.