Home / 521,750.20-782,625.30-189,206.20

Finding the Fourth Proportional to 521,750.20, 782,625.30 and 189,206.20

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Solution

The fourth proportional to 521,750.20, 782,625.30 and 189,206.20 is: 283,809.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,750.20 : 782,625.30 = 189,206.20 : x
  2. Step 2: Convert to fraction form
    521,750.20/782,625.30 = 189,206.20/x
  3. Step 3: Cross multiply
    521,750.20x = 782,625.30 × 189,206.20
  4. Step 4: Simplify right side
    521,750.20x = 148,077,559,036.86
  5. Step 5: Solve for x
    x = 148,077,559,036.86/521,750.20
  6. Step 6: Final answer
    x = 283,809.30

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Similar ratio
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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.