Home / 579,635.20-869,452.80-242,617.60

Finding the Fourth Proportional to 579,635.20, 869,452.80 and 242,617.60

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Solution

The fourth proportional to 579,635.20, 869,452.80 and 242,617.60 is: 363,926.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,635.20 : 869,452.80 = 242,617.60 : x
  2. Step 2: Convert to fraction form
    579,635.20/869,452.80 = 242,617.60/x
  3. Step 3: Cross multiply
    579,635.20x = 869,452.80 × 242,617.60
  4. Step 4: Simplify right side
    579,635.20x = 210,944,551,649.28
  5. Step 5: Solve for x
    x = 210,944,551,649.28/579,635.20
  6. Step 6: Final answer
    x = 363,926.40

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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.