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Finding the Fourth Proportional to 296,618.58, 409,331.55 and 160,649.40

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Solution

The fourth proportional to 296,618.58, 409,331.55 and 160,649.40 is: 221,695.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,618.58 : 409,331.55 = 160,649.40 : x
  2. Step 2: Convert to fraction form
    296,618.58/409,331.55 = 160,649.40/x
  3. Step 3: Cross multiply
    296,618.58x = 409,331.55 × 160,649.40
  4. Step 4: Simplify right side
    296,618.58x = 65,758,867,908.57
  5. Step 5: Solve for x
    x = 65,758,867,908.57/296,618.58
  6. Step 6: Final answer
    x = 221,695.04

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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.