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Finding the Fourth Proportional to 616,560.62, 850,853.34 and 361,911.80

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Solution

The fourth proportional to 616,560.62, 850,853.34 and 361,911.80 is: 499,438.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,560.62 : 850,853.34 = 361,911.80 : x
  2. Step 2: Convert to fraction form
    616,560.62/850,853.34 = 361,911.80/x
  3. Step 3: Cross multiply
    616,560.62x = 850,853.34 × 361,911.80
  4. Step 4: Simplify right side
    616,560.62x = 307,933,859,561.15
  5. Step 5: Solve for x
    x = 307,933,859,561.15/616,560.62
  6. Step 6: Final answer
    x = 499,438.10

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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.