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Finding the Fourth Proportional to 1,427,436, 1,969,861.68 and 791,532

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Solution

The fourth proportional to 1,427,436, 1,969,861.68 and 791,532 is: 1,092,314.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,427,436 : 1,969,861.68 = 791,532 : x
  2. Step 2: Convert to fraction form
    1,427,436/1,969,861.68 = 791,532/x
  3. Step 3: Cross multiply
    1,427,436x = 1,969,861.68 × 791,532
  4. Step 4: Simplify right side
    1,427,436x = 1,559,208,555,293.76
  5. Step 5: Solve for x
    x = 1,559,208,555,293.76/1,427,436
  6. Step 6: Final answer
    x = 1,092,314.16

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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.