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Finding the Fourth Proportional to 483,139.20, 724,708.80 and 441,804.90

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Solution

The fourth proportional to 483,139.20, 724,708.80 and 441,804.90 is: 662,707.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,139.20 : 724,708.80 = 441,804.90 : x
  2. Step 2: Convert to fraction form
    483,139.20/724,708.80 = 441,804.90/x
  3. Step 3: Cross multiply
    483,139.20x = 724,708.80 × 441,804.90
  4. Step 4: Simplify right side
    483,139.20x = 320,179,898,913.12
  5. Step 5: Solve for x
    x = 320,179,898,913.12/483,139.20
  6. Step 6: Final answer
    x = 662,707.35

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Similar ratio
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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.