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Finding the Fourth Proportional to 543,774.60, 814,049.10 and 404,152.20

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Solution

The fourth proportional to 543,774.60, 814,049.10 and 404,152.20 is: 605,029.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,774.60 : 814,049.10 = 404,152.20 : x
  2. Step 2: Convert to fraction form
    543,774.60/814,049.10 = 404,152.20/x
  3. Step 3: Cross multiply
    543,774.60x = 814,049.10 × 404,152.20
  4. Step 4: Simplify right side
    543,774.60x = 328,999,734,673.02
  5. Step 5: Solve for x
    x = 328,999,734,673.02/543,774.60
  6. Step 6: Final answer
    x = 605,029.61

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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.