Home / 579,388.20-869,082.30-529,621.80

Finding the Fourth Proportional to 579,388.20, 869,082.30 and 529,621.80

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Solution

The fourth proportional to 579,388.20, 869,082.30 and 529,621.80 is: 794,432.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,388.20 : 869,082.30 = 529,621.80 : x
  2. Step 2: Convert to fraction form
    579,388.20/869,082.30 = 529,621.80/x
  3. Step 3: Cross multiply
    579,388.20x = 869,082.30 × 529,621.80
  4. Step 4: Simplify right side
    579,388.20x = 460,284,932,074.14
  5. Step 5: Solve for x
    x = 460,284,932,074.14/579,388.20
  6. Step 6: Final answer
    x = 794,432.70

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Double scale
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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.