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Finding the Fourth Proportional to 1,359,965.43, 1,876,741.92 and 748,105.02

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Solution

The fourth proportional to 1,359,965.43, 1,876,741.92 and 748,105.02 is: 1,032,379.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,359,965.43 : 1,876,741.92 = 748,105.02 : x
  2. Step 2: Convert to fraction form
    1,359,965.43/1,876,741.92 = 748,105.02/x
  3. Step 3: Cross multiply
    1,359,965.43x = 1,876,741.92 × 748,105.02
  4. Step 4: Simplify right side
    1,359,965.43x = 1,404,000,051,596.44
  5. Step 5: Solve for x
    x = 1,404,000,051,596.44/1,359,965.43
  6. Step 6: Final answer
    x = 1,032,379.22

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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.