Home / 453,749.20-679,932.60-383,246.80

Finding the Fourth Proportional to 453,749.20, 679,932.60 and 383,246.80

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Solution

The fourth proportional to 453,749.20, 679,932.60 and 383,246.80 is: 574,286.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,749.20 : 679,932.60 = 383,246.80 : x
  2. Step 2: Convert to fraction form
    453,749.20/679,932.60 = 383,246.80/x
  3. Step 3: Cross multiply
    453,749.20x = 679,932.60 × 383,246.80
  4. Step 4: Simplify right side
    453,749.20x = 260,581,993,165.68
  5. Step 5: Solve for x
    x = 260,581,993,165.68/453,749.20
  6. Step 6: Final answer
    x = 574,286.40

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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.