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Finding the Fourth Proportional to 360,025.40, 539,778.90 and 202,302.20

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Solution

The fourth proportional to 360,025.40, 539,778.90 and 202,302.20 is: 303,307.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,025.40 : 539,778.90 = 202,302.20 : x
  2. Step 2: Convert to fraction form
    360,025.40/539,778.90 = 202,302.20/x
  3. Step 3: Cross multiply
    360,025.40x = 539,778.90 × 202,302.20
  4. Step 4: Simplify right side
    360,025.40x = 109,198,458,983.58
  5. Step 5: Solve for x
    x = 109,198,458,983.58/360,025.40
  6. Step 6: Final answer
    x = 303,307.65

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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.