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Finding the Fourth Proportional to 1,300,579.04, 1,794,868.80 and 727,585.04

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Solution

The fourth proportional to 1,300,579.04, 1,794,868.80 and 727,585.04 is: 1,004,106.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,300,579.04 : 1,794,868.80 = 727,585.04 : x
  2. Step 2: Convert to fraction form
    1,300,579.04/1,794,868.80 = 727,585.04/x
  3. Step 3: Cross multiply
    1,300,579.04x = 1,794,868.80 × 727,585.04
  4. Step 4: Simplify right side
    1,300,579.04x = 1,305,919,687,642.75
  5. Step 5: Solve for x
    x = 1,305,919,687,642.75/1,300,579.04
  6. Step 6: Final answer
    x = 1,004,106.36

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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.