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Finding the Fourth Proportional to 625,498.48, 863,231.77 and 353,568.60

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Solution

The fourth proportional to 625,498.48, 863,231.77 and 353,568.60 is: 487,949.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,498.48 : 863,231.77 = 353,568.60 : x
  2. Step 2: Convert to fraction form
    625,498.48/863,231.77 = 353,568.60/x
  3. Step 3: Cross multiply
    625,498.48x = 863,231.77 × 353,568.60
  4. Step 4: Simplify right side
    625,498.48x = 305,211,648,836.38
  5. Step 5: Solve for x
    x = 305,211,648,836.38/625,498.48
  6. Step 6: Final answer
    x = 487,949.46

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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.