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Finding the Fourth Proportional to 438,525.76, 605,165.58 and 237,321.76

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Solution

The fourth proportional to 438,525.76, 605,165.58 and 237,321.76 is: 327,504.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,525.76 : 605,165.58 = 237,321.76 : x
  2. Step 2: Convert to fraction form
    438,525.76/605,165.58 = 237,321.76/x
  3. Step 3: Cross multiply
    438,525.76x = 605,165.58 × 237,321.76
  4. Step 4: Simplify right side
    438,525.76x = 143,618,960,537.02
  5. Step 5: Solve for x
    x = 143,618,960,537.02/438,525.76
  6. Step 6: Final answer
    x = 327,504.05

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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.