Home / 579,774.20-869,229.30-299,492.60

Finding the Fourth Proportional to 579,774.20, 869,229.30 and 299,492.60

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Solution

The fourth proportional to 579,774.20, 869,229.30 and 299,492.60 is: 449,015.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,774.20 : 869,229.30 = 299,492.60 : x
  2. Step 2: Convert to fraction form
    579,774.20/869,229.30 = 299,492.60/x
  3. Step 3: Cross multiply
    579,774.20x = 869,229.30 × 299,492.60
  4. Step 4: Simplify right side
    579,774.20x = 260,327,743,053.18
  5. Step 5: Solve for x
    x = 260,327,743,053.18/579,774.20
  6. Step 6: Final answer
    x = 449,015.74

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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.