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Finding the Fourth Proportional to 483,605.77, 724,462.76 and 398,339.04

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Solution

The fourth proportional to 483,605.77, 724,462.76 and 398,339.04 is: 596,729.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,605.77 : 724,462.76 = 398,339.04 : x
  2. Step 2: Convert to fraction form
    483,605.77/724,462.76 = 398,339.04/x
  3. Step 3: Cross multiply
    483,605.77x = 724,462.76 × 398,339.04
  4. Step 4: Simplify right side
    483,605.77x = 288,581,800,334.15
  5. Step 5: Solve for x
    x = 288,581,800,334.15/483,605.77
  6. Step 6: Final answer
    x = 596,729.44

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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.