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Finding the Fourth Proportional to 1,353,808.98, 1,867,180.21 and 1,150,532.79

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Solution

The fourth proportional to 1,353,808.98, 1,867,180.21 and 1,150,532.79 is: 1,586,820.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,353,808.98 : 1,867,180.21 = 1,150,532.79 : x
  2. Step 2: Convert to fraction form
    1,353,808.98/1,867,180.21 = 1,150,532.79/x
  3. Step 3: Cross multiply
    1,353,808.98x = 1,867,180.21 × 1,150,532.79
  4. Step 4: Simplify right side
    1,353,808.98x = 2,148,252,067,041.43
  5. Step 5: Solve for x
    x = 2,148,252,067,041.43/1,353,808.98
  6. Step 6: Final answer
    x = 1,586,820.67

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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.