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Finding the Fourth Proportional to 404,808.57, 558,642.75 and 261,817.73

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Solution

The fourth proportional to 404,808.57, 558,642.75 and 261,817.73 is: 361,312.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,808.57 : 558,642.75 = 261,817.73 : x
  2. Step 2: Convert to fraction form
    404,808.57/558,642.75 = 261,817.73/x
  3. Step 3: Cross multiply
    404,808.57x = 558,642.75 × 261,817.73
  4. Step 4: Simplify right side
    404,808.57x = 146,262,577,356.20
  5. Step 5: Solve for x
    x = 146,262,577,356.20/404,808.57
  6. Step 6: Final answer
    x = 361,312.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.