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Finding the Fourth Proportional to 329,568.75, 454,365.05 and 261,810.63

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Solution

The fourth proportional to 329,568.75, 454,365.05 and 261,810.63 is: 360,949.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,568.75 : 454,365.05 = 261,810.63 : x
  2. Step 2: Convert to fraction form
    329,568.75/454,365.05 = 261,810.63/x
  3. Step 3: Cross multiply
    329,568.75x = 454,365.05 × 261,810.63
  4. Step 4: Simplify right side
    329,568.75x = 118,957,598,681.43
  5. Step 5: Solve for x
    x = 118,957,598,681.43/329,568.75
  6. Step 6: Final answer
    x = 360,949.27

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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.