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Finding the Fourth Proportional to 1,068,093, 1,473,969.78 and 665,685

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Solution

The fourth proportional to 1,068,093, 1,473,969.78 and 665,685 is: 918,646.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,068,093 : 1,473,969.78 = 665,685 : x
  2. Step 2: Convert to fraction form
    1,068,093/1,473,969.78 = 665,685/x
  3. Step 3: Cross multiply
    1,068,093x = 1,473,969.78 × 665,685
  4. Step 4: Simplify right side
    1,068,093x = 981,199,572,999.30
  5. Step 5: Solve for x
    x = 981,199,572,999.30/1,068,093
  6. Step 6: Final answer
    x = 918,646.20

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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.