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Finding the Fourth Proportional to 1,775,354.40, 2,661,476.40 and 1,065,664.80

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Solution

The fourth proportional to 1,775,354.40, 2,661,476.40 and 1,065,664.80 is: 1,597,563.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,775,354.40 : 2,661,476.40 = 1,065,664.80 : x
  2. Step 2: Convert to fraction form
    1,775,354.40/2,661,476.40 = 1,065,664.80/x
  3. Step 3: Cross multiply
    1,775,354.40x = 2,661,476.40 × 1,065,664.80
  4. Step 4: Simplify right side
    1,775,354.40x = 2,836,241,715,510.72
  5. Step 5: Solve for x
    x = 2,836,241,715,510.72/1,775,354.40
  6. Step 6: Final answer
    x = 1,597,563.68

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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.