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Finding the Fourth Proportional to 662,934.60, 994,401.90 and 410,992.20

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Solution

The fourth proportional to 662,934.60, 994,401.90 and 410,992.20 is: 616,488.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,934.60 : 994,401.90 = 410,992.20 : x
  2. Step 2: Convert to fraction form
    662,934.60/994,401.90 = 410,992.20/x
  3. Step 3: Cross multiply
    662,934.60x = 994,401.90 × 410,992.20
  4. Step 4: Simplify right side
    662,934.60x = 408,691,424,565.18
  5. Step 5: Solve for x
    x = 408,691,424,565.18/662,934.60
  6. Step 6: Final answer
    x = 616,488.30

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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.