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Finding the Fourth Proportional to 438,909.75, 605,695.46 and 237,705.75

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Solution

The fourth proportional to 438,909.75, 605,695.46 and 237,705.75 is: 328,033.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,909.75 : 605,695.46 = 237,705.75 : x
  2. Step 2: Convert to fraction form
    438,909.75/605,695.46 = 237,705.75/x
  3. Step 3: Cross multiply
    438,909.75x = 605,695.46 × 237,705.75
  4. Step 4: Simplify right side
    438,909.75x = 143,977,292,402.37
  5. Step 5: Solve for x
    x = 143,977,292,402.37/438,909.75
  6. Step 6: Final answer
    x = 328,033.94

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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.