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Finding the Fourth Proportional to 438,559.56, 605,226.72 and 268,760.88

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Solution

The fourth proportional to 438,559.56, 605,226.72 and 268,760.88 is: 370,898.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,559.56 : 605,226.72 = 268,760.88 : x
  2. Step 2: Convert to fraction form
    438,559.56/605,226.72 = 268,760.88/x
  3. Step 3: Cross multiply
    438,559.56x = 605,226.72 × 268,760.88
  4. Step 4: Simplify right side
    438,559.56x = 162,661,265,866.71
  5. Step 5: Solve for x
    x = 162,661,265,866.71/438,559.56
  6. Step 6: Final answer
    x = 370,898.92

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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.