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Finding the Fourth Proportional to 403,908.90, 605,863.35 and 341,700.90

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Solution

The fourth proportional to 403,908.90, 605,863.35 and 341,700.90 is: 512,551.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,908.90 : 605,863.35 = 341,700.90 : x
  2. Step 2: Convert to fraction form
    403,908.90/605,863.35 = 341,700.90/x
  3. Step 3: Cross multiply
    403,908.90x = 605,863.35 × 341,700.90
  4. Step 4: Simplify right side
    403,908.90x = 207,024,051,972.02
  5. Step 5: Solve for x
    x = 207,024,051,972.02/403,908.90
  6. Step 6: Final answer
    x = 512,551.35

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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.