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Finding the Fourth Proportional to 1,866,637.02, 2,799,955.53 and 1,067,357.91

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Solution

The fourth proportional to 1,866,637.02, 2,799,955.53 and 1,067,357.91 is: 1,601,036.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,866,637.02 : 2,799,955.53 = 1,067,357.91 : x
  2. Step 2: Convert to fraction form
    1,866,637.02/2,799,955.53 = 1,067,357.91/x
  3. Step 3: Cross multiply
    1,866,637.02x = 2,799,955.53 × 1,067,357.91
  4. Step 4: Simplify right side
    1,866,637.02x = 2,988,554,682,593.74
  5. Step 5: Solve for x
    x = 2,988,554,682,593.74/1,866,637.02
  6. Step 6: Final answer
    x = 1,601,036.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.