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Finding the Fourth Proportional to 483,491.57, 724,988.20 and 217,023.69

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Solution

The fourth proportional to 483,491.57, 724,988.20 and 217,023.69 is: 325,423.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,491.57 : 724,988.20 = 217,023.69 : x
  2. Step 2: Convert to fraction form
    483,491.57/724,988.20 = 217,023.69/x
  3. Step 3: Cross multiply
    483,491.57x = 724,988.20 × 217,023.69
  4. Step 4: Simplify right side
    483,491.57x = 157,339,614,370.46
  5. Step 5: Solve for x
    x = 157,339,614,370.46/483,491.57
  6. Step 6: Final answer
    x = 325,423.70

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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.