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Finding the Fourth Proportional to 238,603.85, 329,163.59 and 211,407.47

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Solution

The fourth proportional to 238,603.85, 329,163.59 and 211,407.47 is: 291,645.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,603.85 : 329,163.59 = 211,407.47 : x
  2. Step 2: Convert to fraction form
    238,603.85/329,163.59 = 211,407.47/x
  3. Step 3: Cross multiply
    238,603.85x = 329,163.59 × 211,407.47
  4. Step 4: Simplify right side
    238,603.85x = 69,587,642,161.07
  5. Step 5: Solve for x
    x = 69,587,642,161.07/238,603.85
  6. Step 6: Final answer
    x = 291,645.10

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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.