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Finding the Fourth Proportional to 539,477.01, 809,215.92 and 140,084.24

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Solution

The fourth proportional to 539,477.01, 809,215.92 and 140,084.24 is: 210,126.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,477.01 : 809,215.92 = 140,084.24 : x
  2. Step 2: Convert to fraction form
    539,477.01/809,215.92 = 140,084.24/x
  3. Step 3: Cross multiply
    539,477.01x = 809,215.92 × 140,084.24
  4. Step 4: Simplify right side
    539,477.01x = 113,358,393,103.02
  5. Step 5: Solve for x
    x = 113,358,393,103.02/539,477.01
  6. Step 6: Final answer
    x = 210,126.46

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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.