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Finding the Fourth Proportional to 1,738,403.60, 2,606,827.80 and 791,286.80

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Solution

The fourth proportional to 1,738,403.60, 2,606,827.80 and 791,286.80 is: 1,186,576.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,738,403.60 : 2,606,827.80 = 791,286.80 : x
  2. Step 2: Convert to fraction form
    1,738,403.60/2,606,827.80 = 791,286.80/x
  3. Step 3: Cross multiply
    1,738,403.60x = 2,606,827.80 × 791,286.80
  4. Step 4: Simplify right side
    1,738,403.60x = 2,062,748,428,013.04
  5. Step 5: Solve for x
    x = 2,062,748,428,013.04/1,738,403.60
  6. Step 6: Final answer
    x = 1,186,576.25

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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.