Home / 587,584.50-811,114.68-396,856.20

Finding the Fourth Proportional to 587,584.50, 811,114.68 and 396,856.20

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Solution

The fourth proportional to 587,584.50, 811,114.68 and 396,856.20 is: 547,829.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,584.50 : 811,114.68 = 396,856.20 : x
  2. Step 2: Convert to fraction form
    587,584.50/811,114.68 = 396,856.20/x
  3. Step 3: Cross multiply
    587,584.50x = 811,114.68 × 396,856.20
  4. Step 4: Simplify right side
    587,584.50x = 321,895,889,669.02
  5. Step 5: Solve for x
    x = 321,895,889,669.02/587,584.50
  6. Step 6: Final answer
    x = 547,829.10

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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.