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Finding the Fourth Proportional to 585,139.38, 878,408.91 and 348,593.46

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Solution

The fourth proportional to 585,139.38, 878,408.91 and 348,593.46 is: 523,307.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,139.38 : 878,408.91 = 348,593.46 : x
  2. Step 2: Convert to fraction form
    585,139.38/878,408.91 = 348,593.46/x
  3. Step 3: Cross multiply
    585,139.38x = 878,408.91 × 348,593.46
  4. Step 4: Simplify right side
    585,139.38x = 306,207,601,231.73
  5. Step 5: Solve for x
    x = 306,207,601,231.73/585,139.38
  6. Step 6: Final answer
    x = 523,307.12

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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.