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Finding the Fourth Proportional to 366,921.30, 550,381.95 and 260,633.10

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Solution

The fourth proportional to 366,921.30, 550,381.95 and 260,633.10 is: 390,949.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,921.30 : 550,381.95 = 260,633.10 : x
  2. Step 2: Convert to fraction form
    366,921.30/550,381.95 = 260,633.10/x
  3. Step 3: Cross multiply
    366,921.30x = 550,381.95 × 260,633.10
  4. Step 4: Simplify right side
    366,921.30x = 143,447,753,812.55
  5. Step 5: Solve for x
    x = 143,447,753,812.55/366,921.30
  6. Step 6: Final answer
    x = 390,949.65

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.