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Finding the Fourth Proportional to 488,608.60, 674,320.78 and 270,870.52

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Solution

The fourth proportional to 488,608.60, 674,320.78 and 270,870.52 is: 373,824.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,608.60 : 674,320.78 = 270,870.52 : x
  2. Step 2: Convert to fraction form
    488,608.60/674,320.78 = 270,870.52/x
  3. Step 3: Cross multiply
    488,608.60x = 674,320.78 × 270,870.52
  4. Step 4: Simplify right side
    488,608.60x = 182,653,620,325.41
  5. Step 5: Solve for x
    x = 182,653,620,325.41/488,608.60
  6. Step 6: Final answer
    x = 373,824.00

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.