Home / 1,172,872.36-1,618,427.46-656,655.40

Finding the Fourth Proportional to 1,172,872.36, 1,618,427.46 and 656,655.40

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Solution

The fourth proportional to 1,172,872.36, 1,618,427.46 and 656,655.40 is: 906,108.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,172,872.36 : 1,618,427.46 = 656,655.40 : x
  2. Step 2: Convert to fraction form
    1,172,872.36/1,618,427.46 = 656,655.40/x
  3. Step 3: Cross multiply
    1,172,872.36x = 1,618,427.46 × 656,655.40
  4. Step 4: Simplify right side
    1,172,872.36x = 1,062,749,131,117.28
  5. Step 5: Solve for x
    x = 1,062,749,131,117.28/1,172,872.36
  6. Step 6: Final answer
    x = 906,108.09

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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.