Home / 519,741.20-779,611.80-283,545.20

Finding the Fourth Proportional to 519,741.20, 779,611.80 and 283,545.20

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Solution

The fourth proportional to 519,741.20, 779,611.80 and 283,545.20 is: 425,317.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,741.20 : 779,611.80 = 283,545.20 : x
  2. Step 2: Convert to fraction form
    519,741.20/779,611.80 = 283,545.20/x
  3. Step 3: Cross multiply
    519,741.20x = 779,611.80 × 283,545.20
  4. Step 4: Simplify right side
    519,741.20x = 221,055,183,753.36
  5. Step 5: Solve for x
    x = 221,055,183,753.36/519,741.20
  6. Step 6: Final answer
    x = 425,317.80

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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.