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Finding the Fourth Proportional to 1,168,849.40, 1,753,274.10 and 958,724.60

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Solution

The fourth proportional to 1,168,849.40, 1,753,274.10 and 958,724.60 is: 1,438,086.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,168,849.40 : 1,753,274.10 = 958,724.60 : x
  2. Step 2: Convert to fraction form
    1,168,849.40/1,753,274.10 = 958,724.60/x
  3. Step 3: Cross multiply
    1,168,849.40x = 1,753,274.10 × 958,724.60
  4. Step 4: Simplify right side
    1,168,849.40x = 1,680,907,010,212.86
  5. Step 5: Solve for x
    x = 1,680,907,010,212.86/1,168,849.40
  6. Step 6: Final answer
    x = 1,438,086.90

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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.