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Finding the Fourth Proportional to 403,776.20, 605,664.30 and 373,363.40

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Solution

The fourth proportional to 403,776.20, 605,664.30 and 373,363.40 is: 560,045.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,776.20 : 605,664.30 = 373,363.40 : x
  2. Step 2: Convert to fraction form
    403,776.20/605,664.30 = 373,363.40/x
  3. Step 3: Cross multiply
    403,776.20x = 605,664.30 × 373,363.40
  4. Step 4: Simplify right side
    403,776.20x = 226,132,882,306.62
  5. Step 5: Solve for x
    x = 226,132,882,306.62/403,776.20
  6. Step 6: Final answer
    x = 560,045.10

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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.