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Finding the Fourth Proportional to 403,465.12, 603,512.17 and 283,513.64

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Solution

The fourth proportional to 403,465.12, 603,512.17 and 283,513.64 is: 424,086.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,465.12 : 603,512.17 = 283,513.64 : x
  2. Step 2: Convert to fraction form
    403,465.12/603,512.17 = 283,513.64/x
  3. Step 3: Cross multiply
    403,465.12x = 603,512.17 × 283,513.64
  4. Step 4: Simplify right side
    403,465.12x = 171,103,928,374.65
  5. Step 5: Solve for x
    x = 171,103,928,374.65/403,465.12
  6. Step 6: Final answer
    x = 424,086.05

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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.