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Finding the Fourth Proportional to 625,501.86, 863,183.20 and 353,560.22

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Solution

The fourth proportional to 625,501.86, 863,183.20 and 353,560.22 is: 487,907.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,501.86 : 863,183.20 = 353,560.22 : x
  2. Step 2: Convert to fraction form
    625,501.86/863,183.20 = 353,560.22/x
  3. Step 3: Cross multiply
    625,501.86x = 863,183.20 × 353,560.22
  4. Step 4: Simplify right side
    625,501.86x = 305,187,236,873.07
  5. Step 5: Solve for x
    x = 305,187,236,873.07/625,501.86
  6. Step 6: Final answer
    x = 487,907.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.