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Finding the Fourth Proportional to 624,614.06, 861,967.22 and 338,133.93

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Solution

The fourth proportional to 624,614.06, 861,967.22 and 338,133.93 is: 466,624.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,614.06 : 861,967.22 = 338,133.93 : x
  2. Step 2: Convert to fraction form
    624,614.06/861,967.22 = 338,133.93/x
  3. Step 3: Cross multiply
    624,614.06x = 861,967.22 × 338,133.93
  4. Step 4: Simplify right side
    624,614.06x = 291,460,361,939.11
  5. Step 5: Solve for x
    x = 291,460,361,939.11/624,614.06
  6. Step 6: Final answer
    x = 466,624.73

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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.