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Finding the Fourth Proportional to 543,820.10, 814,117.35 and 404,197.70

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Solution

The fourth proportional to 543,820.10, 814,117.35 and 404,197.70 is: 605,097.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,820.10 : 814,117.35 = 404,197.70 : x
  2. Step 2: Convert to fraction form
    543,820.10/814,117.35 = 404,197.70/x
  3. Step 3: Cross multiply
    543,820.10x = 814,117.35 × 404,197.70
  4. Step 4: Simplify right side
    543,820.10x = 329,064,360,400.10
  5. Step 5: Solve for x
    x = 329,064,360,400.10/543,820.10
  6. Step 6: Final answer
    x = 605,097.83

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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.