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Finding the Fourth Proportional to 492,074.90, 738,112.35 and 487,927.70

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Solution

The fourth proportional to 492,074.90, 738,112.35 and 487,927.70 is: 731,891.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,074.90 : 738,112.35 = 487,927.70 : x
  2. Step 2: Convert to fraction form
    492,074.90/738,112.35 = 487,927.70/x
  3. Step 3: Cross multiply
    492,074.90x = 738,112.35 × 487,927.70
  4. Step 4: Simplify right side
    492,074.90x = 360,145,461,277.10
  5. Step 5: Solve for x
    x = 360,145,461,277.10/492,074.90
  6. Step 6: Final answer
    x = 731,891.55

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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.