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Finding the Fourth Proportional to 619,863.51, 929,433.99 and 240,340.88

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Solution

The fourth proportional to 619,863.51, 929,433.99 and 240,340.88 is: 360,371.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,863.51 : 929,433.99 = 240,340.88 : x
  2. Step 2: Convert to fraction form
    619,863.51/929,433.99 = 240,340.88/x
  3. Step 3: Cross multiply
    619,863.51x = 929,433.99 × 240,340.88
  4. Step 4: Simplify right side
    619,863.51x = 223,380,986,283.38
  5. Step 5: Solve for x
    x = 223,380,986,283.38/619,863.51
  6. Step 6: Final answer
    x = 360,371.25

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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.