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Finding the Fourth Proportional to 438,926.76, 605,720.12 and 237,722.76

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Solution

The fourth proportional to 438,926.76, 605,720.12 and 237,722.76 is: 328,058.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,926.76 : 605,720.12 = 237,722.76 : x
  2. Step 2: Convert to fraction form
    438,926.76/605,720.12 = 237,722.76/x
  3. Step 3: Cross multiply
    438,926.76x = 605,720.12 × 237,722.76
  4. Step 4: Simplify right side
    438,926.76x = 143,993,458,713.93
  5. Step 5: Solve for x
    x = 143,993,458,713.93/438,926.76
  6. Step 6: Final answer
    x = 328,058.05

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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.