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Finding the Fourth Proportional to 438,563.12, 605,216.93 and 237,359.12

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Solution

The fourth proportional to 438,563.12, 605,216.93 and 237,359.12 is: 327,555.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,563.12 : 605,216.93 = 237,359.12 : x
  2. Step 2: Convert to fraction form
    438,563.12/605,216.93 = 237,359.12/x
  3. Step 3: Cross multiply
    438,563.12x = 605,216.93 × 237,359.12
  4. Step 4: Simplify right side
    438,563.12x = 143,653,753,701.02
  5. Step 5: Solve for x
    x = 143,653,753,701.02/438,563.12
  6. Step 6: Final answer
    x = 327,555.48

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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.