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Finding the Fourth Proportional to 539,401.68, 809,117.10 and 140,033.61

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Solution

The fourth proportional to 539,401.68, 809,117.10 and 140,033.61 is: 210,054.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,401.68 : 809,117.10 = 140,033.61 : x
  2. Step 2: Convert to fraction form
    539,401.68/809,117.10 = 140,033.61/x
  3. Step 3: Cross multiply
    539,401.68x = 809,117.10 × 140,033.61
  4. Step 4: Simplify right side
    539,401.68x = 113,303,588,425.73
  5. Step 5: Solve for x
    x = 113,303,588,425.73/539,401.68
  6. Step 6: Final answer
    x = 210,054.20

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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.