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Finding the Fourth Proportional to 417,074.11, 624,600.89 and 288,630.48

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Solution

The fourth proportional to 417,074.11, 624,600.89 and 288,630.48 is: 432,246.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,074.11 : 624,600.89 = 288,630.48 : x
  2. Step 2: Convert to fraction form
    417,074.11/624,600.89 = 288,630.48/x
  3. Step 3: Cross multiply
    417,074.11x = 624,600.89 × 288,630.48
  4. Step 4: Simplify right side
    417,074.11x = 180,278,854,689.13
  5. Step 5: Solve for x
    x = 180,278,854,689.13/417,074.11
  6. Step 6: Final answer
    x = 432,246.57

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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.