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Finding the Fourth Proportional to 360,177.45, 539,890.74 and 135,383.01

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Solution

The fourth proportional to 360,177.45, 539,890.74 and 135,383.01 is: 202,933.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,177.45 : 539,890.74 = 135,383.01 : x
  2. Step 2: Convert to fraction form
    360,177.45/539,890.74 = 135,383.01/x
  3. Step 3: Cross multiply
    360,177.45x = 539,890.74 × 135,383.01
  4. Step 4: Simplify right side
    360,177.45x = 73,092,033,452.33
  5. Step 5: Solve for x
    x = 73,092,033,452.33/360,177.45
  6. Step 6: Final answer
    x = 202,933.40

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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.