Home / 654,372.14-906,677.20-640,200.38

Finding the Fourth Proportional to 654,372.14, 906,677.20 and 640,200.38

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Solution

The fourth proportional to 654,372.14, 906,677.20 and 640,200.38 is: 887,041.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,372.14 : 906,677.20 = 640,200.38 : x
  2. Step 2: Convert to fraction form
    654,372.14/906,677.20 = 640,200.38/x
  3. Step 3: Cross multiply
    654,372.14x = 906,677.20 × 640,200.38
  4. Step 4: Simplify right side
    654,372.14x = 580,455,087,977.34
  5. Step 5: Solve for x
    x = 580,455,087,977.34/654,372.14
  6. Step 6: Final answer
    x = 887,041.26

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.