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Finding the Fourth Proportional to 488,709.80, 733,064.70 and 453,280.40

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Solution

The fourth proportional to 488,709.80, 733,064.70 and 453,280.40 is: 679,920.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,709.80 : 733,064.70 = 453,280.40 : x
  2. Step 2: Convert to fraction form
    488,709.80/733,064.70 = 453,280.40/x
  3. Step 3: Cross multiply
    488,709.80x = 733,064.70 × 453,280.40
  4. Step 4: Simplify right side
    488,709.80x = 332,283,860,441.88
  5. Step 5: Solve for x
    x = 332,283,860,441.88/488,709.80
  6. Step 6: Final answer
    x = 679,920.60

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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.