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Finding the Fourth Proportional to 288,057.80, 431,568.30 and 246,585.80

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Solution

The fourth proportional to 288,057.80, 431,568.30 and 246,585.80 is: 369,434.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,057.80 : 431,568.30 = 246,585.80 : x
  2. Step 2: Convert to fraction form
    288,057.80/431,568.30 = 246,585.80/x
  3. Step 3: Cross multiply
    288,057.80x = 431,568.30 × 246,585.80
  4. Step 4: Simplify right side
    288,057.80x = 106,418,614,510.14
  5. Step 5: Solve for x
    x = 106,418,614,510.14/288,057.80
  6. Step 6: Final answer
    x = 369,434.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.