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Finding the Fourth Proportional to 375,637.48, 518,378.72 and 203,560.22

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Solution

The fourth proportional to 375,637.48, 518,378.72 and 203,560.22 is: 280,912.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,637.48 : 518,378.72 = 203,560.22 : x
  2. Step 2: Convert to fraction form
    375,637.48/518,378.72 = 203,560.22/x
  3. Step 3: Cross multiply
    375,637.48x = 518,378.72 × 203,560.22
  4. Step 4: Simplify right side
    375,637.48x = 105,521,286,286.52
  5. Step 5: Solve for x
    x = 105,521,286,286.52/375,637.48
  6. Step 6: Final answer
    x = 280,912.56

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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.