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Finding the Fourth Proportional to 517,193.82, 713,561.33 and 313,179.53

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Solution

The fourth proportional to 517,193.82, 713,561.33 and 313,179.53 is: 432,087.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,193.82 : 713,561.33 = 313,179.53 : x
  2. Step 2: Convert to fraction form
    517,193.82/713,561.33 = 313,179.53/x
  3. Step 3: Cross multiply
    517,193.82x = 713,561.33 × 313,179.53
  4. Step 4: Simplify right side
    517,193.82x = 223,472,799,170.72
  5. Step 5: Solve for x
    x = 223,472,799,170.72/517,193.82
  6. Step 6: Final answer
    x = 432,087.14

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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.