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Finding the Fourth Proportional to 403,744.10, 605,616.15 and 366,346.40

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Solution

The fourth proportional to 403,744.10, 605,616.15 and 366,346.40 is: 549,519.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,744.10 : 605,616.15 = 366,346.40 : x
  2. Step 2: Convert to fraction form
    403,744.10/605,616.15 = 366,346.40/x
  3. Step 3: Cross multiply
    403,744.10x = 605,616.15 × 366,346.40
  4. Step 4: Simplify right side
    403,744.10x = 221,865,296,334.36
  5. Step 5: Solve for x
    x = 221,865,296,334.36/403,744.10
  6. Step 6: Final answer
    x = 549,519.60

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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.