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Finding the Fourth Proportional to 702,266.18, 969,154.78 and 396,353.14

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Solution

The fourth proportional to 702,266.18, 969,154.78 and 396,353.14 is: 546,982.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,266.18 : 969,154.78 = 396,353.14 : x
  2. Step 2: Convert to fraction form
    702,266.18/969,154.78 = 396,353.14/x
  3. Step 3: Cross multiply
    702,266.18x = 969,154.78 × 396,353.14
  4. Step 4: Simplify right side
    702,266.18x = 384,127,540,199.01
  5. Step 5: Solve for x
    x = 384,127,540,199.01/702,266.18
  6. Step 6: Final answer
    x = 546,982.83

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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.