Home / 453,247.20-679,849.20-153,698.40

Finding the Fourth Proportional to 453,247.20, 679,849.20 and 153,698.40

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Solution

The fourth proportional to 453,247.20, 679,849.20 and 153,698.40 is: 230,540.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,247.20 : 679,849.20 = 153,698.40 : x
  2. Step 2: Convert to fraction form
    453,247.20/679,849.20 = 153,698.40/x
  3. Step 3: Cross multiply
    453,247.20x = 679,849.20 × 153,698.40
  4. Step 4: Simplify right side
    453,247.20x = 104,491,734,281.28
  5. Step 5: Solve for x
    x = 104,491,734,281.28/453,247.20
  6. Step 6: Final answer
    x = 230,540.28

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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.