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Finding the Fourth Proportional to 1,359,821.64, 1,876,599.90 and 748,019.88

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Solution

The fourth proportional to 1,359,821.64, 1,876,599.90 and 748,019.88 is: 1,032,292.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,359,821.64 : 1,876,599.90 = 748,019.88 : x
  2. Step 2: Convert to fraction form
    1,359,821.64/1,876,599.90 = 748,019.88/x
  3. Step 3: Cross multiply
    1,359,821.64x = 1,876,599.90 × 748,019.88
  4. Step 4: Simplify right side
    1,359,821.64x = 1,403,734,032,006.01
  5. Step 5: Solve for x
    x = 1,403,734,032,006.01/1,359,821.64
  6. Step 6: Final answer
    x = 1,032,292.76

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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.