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Finding the Fourth Proportional to 1,955,695.78, 2,934,386.41 and 1,057,769.74

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Solution

The fourth proportional to 1,955,695.78, 2,934,386.41 and 1,057,769.74 is: 1,587,110.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,955,695.78 : 2,934,386.41 = 1,057,769.74 : x
  2. Step 2: Convert to fraction form
    1,955,695.78/2,934,386.41 = 1,057,769.74/x
  3. Step 3: Cross multiply
    1,955,695.78x = 2,934,386.41 × 1,057,769.74
  4. Step 4: Simplify right side
    1,955,695.78x = 3,103,905,149,965.23
  5. Step 5: Solve for x
    x = 3,103,905,149,965.23/1,955,695.78
  6. Step 6: Final answer
    x = 1,587,110.42

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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.