Home / 519,904.20-779,856.30-283,708.20

Finding the Fourth Proportional to 519,904.20, 779,856.30 and 283,708.20

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Solution

The fourth proportional to 519,904.20, 779,856.30 and 283,708.20 is: 425,562.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,904.20 : 779,856.30 = 283,708.20 : x
  2. Step 2: Convert to fraction form
    519,904.20/779,856.30 = 283,708.20/x
  3. Step 3: Cross multiply
    519,904.20x = 779,856.30 × 283,708.20
  4. Step 4: Simplify right side
    519,904.20x = 221,251,627,131.66
  5. Step 5: Solve for x
    x = 221,251,627,131.66/519,904.20
  6. Step 6: Final answer
    x = 425,562.30

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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.