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Finding the Fourth Proportional to 633,427.38, 873,886.59 and 361,510.38

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Solution

The fourth proportional to 633,427.38, 873,886.59 and 361,510.38 is: 498,745.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,427.38 : 873,886.59 = 361,510.38 : x
  2. Step 2: Convert to fraction form
    633,427.38/873,886.59 = 361,510.38/x
  3. Step 3: Cross multiply
    633,427.38x = 873,886.59 × 361,510.38
  4. Step 4: Simplify right side
    633,427.38x = 315,919,073,227.80
  5. Step 5: Solve for x
    x = 315,919,073,227.80/633,427.38
  6. Step 6: Final answer
    x = 498,745.53

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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.