Home / 540,819.20-811,724.80-274,764.80

Finding the Fourth Proportional to 540,819.20, 811,724.80 and 274,764.80

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Solution

The fourth proportional to 540,819.20, 811,724.80 and 274,764.80 is: 412,399.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,819.20 : 811,724.80 = 274,764.80 : x
  2. Step 2: Convert to fraction form
    540,819.20/811,724.80 = 274,764.80/x
  3. Step 3: Cross multiply
    540,819.20x = 811,724.80 × 274,764.80
  4. Step 4: Simplify right side
    540,819.20x = 223,033,402,327.04
  5. Step 5: Solve for x
    x = 223,033,402,327.04/540,819.20
  6. Step 6: Final answer
    x = 412,399.19

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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.