Home / 1,285,963.71-1,773,816.54-826,288.20

Finding the Fourth Proportional to 1,285,963.71, 1,773,816.54 and 826,288.20

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Solution

The fourth proportional to 1,285,963.71, 1,773,816.54 and 826,288.20 is: 1,139,755.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,285,963.71 : 1,773,816.54 = 826,288.20 : x
  2. Step 2: Convert to fraction form
    1,285,963.71/1,773,816.54 = 826,288.20/x
  3. Step 3: Cross multiply
    1,285,963.71x = 1,773,816.54 × 826,288.20
  4. Step 4: Simplify right side
    1,285,963.71x = 1,465,683,672,868.25
  5. Step 5: Solve for x
    x = 1,465,683,672,868.25/1,285,963.71
  6. Step 6: Final answer
    x = 1,139,755.08

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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.