Home / 440,885.12-661,412.80-188,161.92

Finding the Fourth Proportional to 440,885.12, 661,412.80 and 188,161.92

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Solution

The fourth proportional to 440,885.12, 661,412.80 and 188,161.92 is: 282,279.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,885.12 : 661,412.80 = 188,161.92 : x
  2. Step 2: Convert to fraction form
    440,885.12/661,412.80 = 188,161.92/x
  3. Step 3: Cross multiply
    440,885.12x = 661,412.80 × 188,161.92
  4. Step 4: Simplify right side
    440,885.12x = 124,452,702,360.58
  5. Step 5: Solve for x
    x = 124,452,702,360.58/440,885.12
  6. Step 6: Final answer
    x = 282,279.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.