Home / 519,820.20-779,730.30-283,624.20

Finding the Fourth Proportional to 519,820.20, 779,730.30 and 283,624.20

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Solution

The fourth proportional to 519,820.20, 779,730.30 and 283,624.20 is: 425,436.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,820.20 : 779,730.30 = 283,624.20 : x
  2. Step 2: Convert to fraction form
    519,820.20/779,730.30 = 283,624.20/x
  3. Step 3: Cross multiply
    519,820.20x = 779,730.30 × 283,624.20
  4. Step 4: Simplify right side
    519,820.20x = 221,150,382,553.26
  5. Step 5: Solve for x
    x = 221,150,382,553.26/519,820.20
  6. Step 6: Final answer
    x = 425,436.30

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Double scale
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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.