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Finding the Fourth Proportional to 360,215.76, 497,121.30 and 239,167.56

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Solution

The fourth proportional to 360,215.76, 497,121.30 and 239,167.56 is: 330,066.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,215.76 : 497,121.30 = 239,167.56 : x
  2. Step 2: Convert to fraction form
    360,215.76/497,121.30 = 239,167.56/x
  3. Step 3: Cross multiply
    360,215.76x = 497,121.30 × 239,167.56
  4. Step 4: Simplify right side
    360,215.76x = 118,895,288,345.03
  5. Step 5: Solve for x
    x = 118,895,288,345.03/360,215.76
  6. Step 6: Final answer
    x = 330,066.87

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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.