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Finding the Fourth Proportional to 517,615.67, 714,143.48 and 313,601.37

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Solution

The fourth proportional to 517,615.67, 714,143.48 and 313,601.37 is: 432,669.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,615.67 : 714,143.48 = 313,601.37 : x
  2. Step 2: Convert to fraction form
    517,615.67/714,143.48 = 313,601.37/x
  3. Step 3: Cross multiply
    517,615.67x = 714,143.48 × 313,601.37
  4. Step 4: Simplify right side
    517,615.67x = 223,956,372,920.56
  5. Step 5: Solve for x
    x = 223,956,372,920.56/517,615.67
  6. Step 6: Final answer
    x = 432,669.23

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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.