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Finding the Fourth Proportional to 1,407,645.28, 1,942,526.64 and 795,788.56

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Solution

The fourth proportional to 1,407,645.28, 1,942,526.64 and 795,788.56 is: 1,098,174.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,407,645.28 : 1,942,526.64 = 795,788.56 : x
  2. Step 2: Convert to fraction form
    1,407,645.28/1,942,526.64 = 795,788.56/x
  3. Step 3: Cross multiply
    1,407,645.28x = 1,942,526.64 × 795,788.56
  4. Step 4: Simplify right side
    1,407,645.28x = 1,545,840,477,607.24
  5. Step 5: Solve for x
    x = 1,545,840,477,607.24/1,407,645.28
  6. Step 6: Final answer
    x = 1,098,174.73

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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.