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Finding the Fourth Proportional to 492,113.70, 738,170.55 and 403,467.30

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Solution

The fourth proportional to 492,113.70, 738,170.55 and 403,467.30 is: 605,200.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,113.70 : 738,170.55 = 403,467.30 : x
  2. Step 2: Convert to fraction form
    492,113.70/738,170.55 = 403,467.30/x
  3. Step 3: Cross multiply
    492,113.70x = 738,170.55 × 403,467.30
  4. Step 4: Simplify right side
    492,113.70x = 297,827,678,748.02
  5. Step 5: Solve for x
    x = 297,827,678,748.02/492,113.70
  6. Step 6: Final answer
    x = 605,200.95

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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.