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Finding the Fourth Proportional to 422,295.68, 582,547.20 and 261,099.20

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Solution

The fourth proportional to 422,295.68, 582,547.20 and 261,099.20 is: 360,180.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,295.68 : 582,547.20 = 261,099.20 : x
  2. Step 2: Convert to fraction form
    422,295.68/582,547.20 = 261,099.20/x
  3. Step 3: Cross multiply
    422,295.68x = 582,547.20 × 261,099.20
  4. Step 4: Simplify right side
    422,295.68x = 152,102,607,882.24
  5. Step 5: Solve for x
    x = 152,102,607,882.24/422,295.68
  6. Step 6: Final answer
    x = 360,180.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.