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Finding the Fourth Proportional to 1,427,438, 1,969,864.44 and 791,534

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Solution

The fourth proportional to 1,427,438, 1,969,864.44 and 791,534 is: 1,092,316.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,427,438 : 1,969,864.44 = 791,534 : x
  2. Step 2: Convert to fraction form
    1,427,438/1,969,864.44 = 791,534/x
  3. Step 3: Cross multiply
    1,427,438x = 1,969,864.44 × 791,534
  4. Step 4: Simplify right side
    1,427,438x = 1,559,214,679,650.96
  5. Step 5: Solve for x
    x = 1,559,214,679,650.96/1,427,438
  6. Step 6: Final answer
    x = 1,092,316.92

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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.