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Finding the Fourth Proportional to 480,856.80, 663,524.57 and 276,974.03

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Solution

The fourth proportional to 480,856.80, 663,524.57 and 276,974.03 is: 382,190.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,856.80 : 663,524.57 = 276,974.03 : x
  2. Step 2: Convert to fraction form
    480,856.80/663,524.57 = 276,974.03/x
  3. Step 3: Cross multiply
    480,856.80x = 663,524.57 × 276,974.03
  4. Step 4: Simplify right side
    480,856.80x = 183,779,074,430.86
  5. Step 5: Solve for x
    x = 183,779,074,430.86/480,856.80
  6. Step 6: Final answer
    x = 382,190.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.