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Finding the Fourth Proportional to 1,888,247.04, 2,605,747.86 and 1,028,813.52

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Solution

The fourth proportional to 1,888,247.04, 2,605,747.86 and 1,028,813.52 is: 1,419,744.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,888,247.04 : 2,605,747.86 = 1,028,813.52 : x
  2. Step 2: Convert to fraction form
    1,888,247.04/2,605,747.86 = 1,028,813.52/x
  3. Step 3: Cross multiply
    1,888,247.04x = 2,605,747.86 × 1,028,813.52
  4. Step 4: Simplify right side
    1,888,247.04x = 2,680,828,628,079.07
  5. Step 5: Solve for x
    x = 2,680,828,628,079.07/1,888,247.04
  6. Step 6: Final answer
    x = 1,419,744.65

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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.