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Finding the Fourth Proportional to 492,069.40, 738,104.10 and 487,922.20

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Solution

The fourth proportional to 492,069.40, 738,104.10 and 487,922.20 is: 731,883.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,069.40 : 738,104.10 = 487,922.20 : x
  2. Step 2: Convert to fraction form
    492,069.40/738,104.10 = 487,922.20/x
  3. Step 3: Cross multiply
    492,069.40x = 738,104.10 × 487,922.20
  4. Step 4: Simplify right side
    492,069.40x = 360,137,376,301.02
  5. Step 5: Solve for x
    x = 360,137,376,301.02/492,069.40
  6. Step 6: Final answer
    x = 731,883.30

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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.