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Finding the Fourth Proportional to 328,113.32, 451,799.98 and 270,536.90

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Solution

The fourth proportional to 328,113.32, 451,799.98 and 270,536.90 is: 372,519.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,113.32 : 451,799.98 = 270,536.90 : x
  2. Step 2: Convert to fraction form
    328,113.32/451,799.98 = 270,536.90/x
  3. Step 3: Cross multiply
    328,113.32x = 451,799.98 × 270,536.90
  4. Step 4: Simplify right side
    328,113.32x = 122,228,563,073.92
  5. Step 5: Solve for x
    x = 122,228,563,073.92/328,113.32
  6. Step 6: Final answer
    x = 372,519.36

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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.