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Finding the Fourth Proportional to 288,189.41, 431,398.31 and 245,674.13

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Solution

The fourth proportional to 288,189.41, 431,398.31 and 245,674.13 is: 367,756.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,189.41 : 431,398.31 = 245,674.13 : x
  2. Step 2: Convert to fraction form
    288,189.41/431,398.31 = 245,674.13/x
  3. Step 3: Cross multiply
    288,189.41x = 431,398.31 × 245,674.13
  4. Step 4: Simplify right side
    288,189.41x = 105,983,401,107.36
  5. Step 5: Solve for x
    x = 105,983,401,107.36/288,189.41
  6. Step 6: Final answer
    x = 367,756.06

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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.