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Finding the Fourth Proportional to 438,595.88, 605,267.32 and 257,310.96

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Solution

The fourth proportional to 438,595.88, 605,267.32 and 257,310.96 is: 355,092.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,595.88 : 605,267.32 = 257,310.96 : x
  2. Step 2: Convert to fraction form
    438,595.88/605,267.32 = 257,310.96/x
  3. Step 3: Cross multiply
    438,595.88x = 605,267.32 × 257,310.96
  4. Step 4: Simplify right side
    438,595.88x = 155,741,915,165.83
  5. Step 5: Solve for x
    x = 155,741,915,165.83/438,595.88
  6. Step 6: Final answer
    x = 355,092.06

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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.