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Finding the Fourth Proportional to 967,405.80, 1,451,108.70 and 489,108.90

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Solution

The fourth proportional to 967,405.80, 1,451,108.70 and 489,108.90 is: 733,663.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    967,405.80 : 1,451,108.70 = 489,108.90 : x
  2. Step 2: Convert to fraction form
    967,405.80/1,451,108.70 = 489,108.90/x
  3. Step 3: Cross multiply
    967,405.80x = 1,451,108.70 × 489,108.90
  4. Step 4: Simplify right side
    967,405.80x = 709,750,180,037.43
  5. Step 5: Solve for x
    x = 709,750,180,037.43/967,405.80
  6. Step 6: Final answer
    x = 733,663.35

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Similar ratio
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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.