Home / 1,186,691.26-1,637,641.77-642,827.04

Finding the Fourth Proportional to 1,186,691.26, 1,637,641.77 and 642,827.04

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Solution

The fourth proportional to 1,186,691.26, 1,637,641.77 and 642,827.04 is: 887,105.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,691.26 : 1,637,641.77 = 642,827.04 : x
  2. Step 2: Convert to fraction form
    1,186,691.26/1,637,641.77 = 642,827.04/x
  3. Step 3: Cross multiply
    1,186,691.26x = 1,637,641.77 × 642,827.04
  4. Step 4: Simplify right side
    1,186,691.26x = 1,052,720,408,461.56
  5. Step 5: Solve for x
    x = 1,052,720,408,461.56/1,186,691.26
  6. Step 6: Final answer
    x = 887,105.56

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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.