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Finding the Fourth Proportional to 296,618.82, 409,331.67 and 160,649.58

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Solution

The fourth proportional to 296,618.82, 409,331.67 and 160,649.58 is: 221,695.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,618.82 : 409,331.67 = 160,649.58 : x
  2. Step 2: Convert to fraction form
    296,618.82/409,331.67 = 160,649.58/x
  3. Step 3: Cross multiply
    296,618.82x = 409,331.67 × 160,649.58
  4. Step 4: Simplify right side
    296,618.82x = 65,758,960,866.20
  5. Step 5: Solve for x
    x = 65,758,960,866.20/296,618.82
  6. Step 6: Final answer
    x = 221,695.17

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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.