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Finding the Fourth Proportional to 368,351.54, 508,167.89 and 211,104.18

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Solution

The fourth proportional to 368,351.54, 508,167.89 and 211,104.18 is: 291,233.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,351.54 : 508,167.89 = 211,104.18 : x
  2. Step 2: Convert to fraction form
    368,351.54/508,167.89 = 211,104.18/x
  3. Step 3: Cross multiply
    368,351.54x = 508,167.89 × 211,104.18
  4. Step 4: Simplify right side
    368,351.54x = 107,276,364,665.26
  5. Step 5: Solve for x
    x = 107,276,364,665.26/368,351.54
  6. Step 6: Final answer
    x = 291,233.66

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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.