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Finding the Fourth Proportional to 360,553.32, 497,519.82 and 199,386.42

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Solution

The fourth proportional to 360,553.32, 497,519.82 and 199,386.42 is: 275,129.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,553.32 : 497,519.82 = 199,386.42 : x
  2. Step 2: Convert to fraction form
    360,553.32/497,519.82 = 199,386.42/x
  3. Step 3: Cross multiply
    360,553.32x = 497,519.82 × 199,386.42
  4. Step 4: Simplify right side
    360,553.32x = 99,198,695,788.84
  5. Step 5: Solve for x
    x = 99,198,695,788.84/360,553.32
  6. Step 6: Final answer
    x = 275,129.06

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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.