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Finding the Fourth Proportional to 483,534.80, 724,956.60 and 217,077.20

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Solution

The fourth proportional to 483,534.80, 724,956.60 and 217,077.20 is: 325,460.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,534.80 : 724,956.60 = 217,077.20 : x
  2. Step 2: Convert to fraction form
    483,534.80/724,956.60 = 217,077.20/x
  3. Step 3: Cross multiply
    483,534.80x = 724,956.60 × 217,077.20
  4. Step 4: Simplify right side
    483,534.80x = 157,371,548,849.52
  5. Step 5: Solve for x
    x = 157,371,548,849.52/483,534.80
  6. Step 6: Final answer
    x = 325,460.65

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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.