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Finding the Fourth Proportional to 779,926.80, 1,169,890.20 and 744,934.80

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Solution

The fourth proportional to 779,926.80, 1,169,890.20 and 744,934.80 is: 1,117,402.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,926.80 : 1,169,890.20 = 744,934.80 : x
  2. Step 2: Convert to fraction form
    779,926.80/1,169,890.20 = 744,934.80/x
  3. Step 3: Cross multiply
    779,926.80x = 1,169,890.20 × 744,934.80
  4. Step 4: Simplify right side
    779,926.80x = 871,491,922,158.96
  5. Step 5: Solve for x
    x = 871,491,922,158.96/779,926.80
  6. Step 6: Final answer
    x = 1,117,402.20

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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.