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Finding the Fourth Proportional to 1,017,241.09, 1,404,957.78 and 669,934.05

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Solution

The fourth proportional to 1,017,241.09, 1,404,957.78 and 669,934.05 is: 925,276.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,017,241.09 : 1,404,957.78 = 669,934.05 : x
  2. Step 2: Convert to fraction form
    1,017,241.09/1,404,957.78 = 669,934.05/x
  3. Step 3: Cross multiply
    1,017,241.09x = 1,404,957.78 × 669,934.05
  4. Step 4: Simplify right side
    1,017,241.09x = 941,229,055,634.41
  5. Step 5: Solve for x
    x = 941,229,055,634.41/1,017,241.09
  6. Step 6: Final answer
    x = 925,276.28

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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.