Home / 1,172,542.25-1,617,972.12-656,324.91

Finding the Fourth Proportional to 1,172,542.25, 1,617,972.12 and 656,324.91

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Solution

The fourth proportional to 1,172,542.25, 1,617,972.12 and 656,324.91 is: 905,652.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,172,542.25 : 1,617,972.12 = 656,324.91 : x
  2. Step 2: Convert to fraction form
    1,172,542.25/1,617,972.12 = 656,324.91/x
  3. Step 3: Cross multiply
    1,172,542.25x = 1,617,972.12 × 656,324.91
  4. Step 4: Simplify right side
    1,172,542.25x = 1,061,915,406,041.51
  5. Step 5: Solve for x
    x = 1,061,915,406,041.51/1,172,542.25
  6. Step 6: Final answer
    x = 905,652.14

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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.