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Finding the Fourth Proportional to 483,207.70, 724,811.55 and 448,215.70

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Solution

The fourth proportional to 483,207.70, 724,811.55 and 448,215.70 is: 672,323.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,207.70 : 724,811.55 = 448,215.70 : x
  2. Step 2: Convert to fraction form
    483,207.70/724,811.55 = 448,215.70/x
  3. Step 3: Cross multiply
    483,207.70x = 724,811.55 × 448,215.70
  4. Step 4: Simplify right side
    483,207.70x = 324,871,916,251.34
  5. Step 5: Solve for x
    x = 324,871,916,251.34/483,207.70
  6. Step 6: Final answer
    x = 672,323.55

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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.