Home / 821,439.92-1,133,589.53-453,909.11

Finding the Fourth Proportional to 821,439.92, 1,133,589.53 and 453,909.11

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Solution

The fourth proportional to 821,439.92, 1,133,589.53 and 453,909.11 is: 626,395.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,439.92 : 1,133,589.53 = 453,909.11 : x
  2. Step 2: Convert to fraction form
    821,439.92/1,133,589.53 = 453,909.11/x
  3. Step 3: Cross multiply
    821,439.92x = 1,133,589.53 × 453,909.11
  4. Step 4: Simplify right side
    821,439.92x = 514,546,610,134.44
  5. Step 5: Solve for x
    x = 514,546,610,134.44/821,439.92
  6. Step 6: Final answer
    x = 626,395.91

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1.5x scale

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.