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Finding the Fourth Proportional to 394,398.16, 544,381.08 and 233,309.20

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Solution

The fourth proportional to 394,398.16, 544,381.08 and 233,309.20 is: 322,032.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,398.16 : 544,381.08 = 233,309.20 : x
  2. Step 2: Convert to fraction form
    394,398.16/544,381.08 = 233,309.20/x
  3. Step 3: Cross multiply
    394,398.16x = 544,381.08 × 233,309.20
  4. Step 4: Simplify right side
    394,398.16x = 127,009,114,269.94
  5. Step 5: Solve for x
    x = 127,009,114,269.94/394,398.16
  6. Step 6: Final answer
    x = 322,032.73

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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.