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Finding the Fourth Proportional to 404,335.30, 606,502.95 and 262,617.70

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Solution

The fourth proportional to 404,335.30, 606,502.95 and 262,617.70 is: 393,926.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,335.30 : 606,502.95 = 262,617.70 : x
  2. Step 2: Convert to fraction form
    404,335.30/606,502.95 = 262,617.70/x
  3. Step 3: Cross multiply
    404,335.30x = 606,502.95 × 262,617.70
  4. Step 4: Simplify right side
    404,335.30x = 159,278,409,772.22
  5. Step 5: Solve for x
    x = 159,278,409,772.22/404,335.30
  6. Step 6: Final answer
    x = 393,926.55

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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.