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Finding the Fourth Proportional to 1,855,653.93, 2,560,959.45 and 1,039,848.26

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Solution

The fourth proportional to 1,855,653.93, 2,560,959.45 and 1,039,848.26 is: 1,435,078.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,855,653.93 : 2,560,959.45 = 1,039,848.26 : x
  2. Step 2: Convert to fraction form
    1,855,653.93/2,560,959.45 = 1,039,848.26/x
  3. Step 3: Cross multiply
    1,855,653.93x = 2,560,959.45 × 1,039,848.26
  4. Step 4: Simplify right side
    1,855,653.93x = 2,663,009,215,208.26
  5. Step 5: Solve for x
    x = 2,663,009,215,208.26/1,855,653.93
  6. Step 6: Final answer
    x = 1,435,078.58

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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.