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Finding the Fourth Proportional to 1,359,799.60, 1,876,558.84 and 747,968.12

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Solution

The fourth proportional to 1,359,799.60, 1,876,558.84 and 747,968.12 is: 1,032,215.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,359,799.60 : 1,876,558.84 = 747,968.12 : x
  2. Step 2: Convert to fraction form
    1,359,799.60/1,876,558.84 = 747,968.12/x
  3. Step 3: Cross multiply
    1,359,799.60x = 1,876,558.84 × 747,968.12
  4. Step 4: Simplify right side
    1,359,799.60x = 1,403,606,187,624.18
  5. Step 5: Solve for x
    x = 1,403,606,187,624.18/1,359,799.60
  6. Step 6: Final answer
    x = 1,032,215.47

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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.