Home / 1,172,630.05-1,618,256.88-656,371.11

Finding the Fourth Proportional to 1,172,630.05, 1,618,256.88 and 656,371.11

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Solution

The fourth proportional to 1,172,630.05, 1,618,256.88 and 656,371.11 is: 905,807.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,172,630.05 : 1,618,256.88 = 656,371.11 : x
  2. Step 2: Convert to fraction form
    1,172,630.05/1,618,256.88 = 656,371.11/x
  3. Step 3: Cross multiply
    1,172,630.05x = 1,618,256.88 × 656,371.11
  4. Step 4: Simplify right side
    1,172,630.05x = 1,062,177,053,217.60
  5. Step 5: Solve for x
    x = 1,062,177,053,217.60/1,172,630.05
  6. Step 6: Final answer
    x = 905,807.47

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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.