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Finding the Fourth Proportional to 1,139,862.04, 1,711,749.12 and 1,012,067.14

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Solution

The fourth proportional to 1,139,862.04, 1,711,749.12 and 1,012,067.14 is: 1,519,837.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,139,862.04 : 1,711,749.12 = 1,012,067.14 : x
  2. Step 2: Convert to fraction form
    1,139,862.04/1,711,749.12 = 1,012,067.14/x
  3. Step 3: Cross multiply
    1,139,862.04x = 1,711,749.12 × 1,012,067.14
  4. Step 4: Simplify right side
    1,139,862.04x = 1,732,405,036,275.92
  5. Step 5: Solve for x
    x = 1,732,405,036,275.92/1,139,862.04
  6. Step 6: Final answer
    x = 1,519,837.47

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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.