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Finding the Fourth Proportional to 404,252.68, 558,087.42 and 243,143.68

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Solution

The fourth proportional to 404,252.68, 558,087.42 and 243,143.68 is: 335,669.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,252.68 : 558,087.42 = 243,143.68 : x
  2. Step 2: Convert to fraction form
    404,252.68/558,087.42 = 243,143.68/x
  3. Step 3: Cross multiply
    404,252.68x = 558,087.42 × 243,143.68
  4. Step 4: Simplify right side
    404,252.68x = 135,695,429,060.51
  5. Step 5: Solve for x
    x = 135,695,429,060.51/404,252.68
  6. Step 6: Final answer
    x = 335,669.83

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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.