Home / 1,238,513.40-1,709,154.55-694,678.26

Finding the Fourth Proportional to 1,238,513.40, 1,709,154.55 and 694,678.26

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Solution

The fourth proportional to 1,238,513.40, 1,709,154.55 and 694,678.26 is: 958,659.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,513.40 : 1,709,154.55 = 694,678.26 : x
  2. Step 2: Convert to fraction form
    1,238,513.40/1,709,154.55 = 694,678.26/x
  3. Step 3: Cross multiply
    1,238,513.40x = 1,709,154.55 × 694,678.26
  4. Step 4: Simplify right side
    1,238,513.40x = 1,187,312,503,324.10
  5. Step 5: Solve for x
    x = 1,187,312,503,324.10/1,238,513.40
  6. Step 6: Final answer
    x = 958,659.39

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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.