Home / 440,780.14-661,419.33-188,036.75

Finding the Fourth Proportional to 440,780.14, 661,419.33 and 188,036.75

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Solution

The fourth proportional to 440,780.14, 661,419.33 and 188,036.75 is: 282,161.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,780.14 : 661,419.33 = 188,036.75 : x
  2. Step 2: Convert to fraction form
    440,780.14/661,419.33 = 188,036.75/x
  3. Step 3: Cross multiply
    440,780.14x = 661,419.33 × 188,036.75
  4. Step 4: Simplify right side
    440,780.14x = 124,371,136,953.10
  5. Step 5: Solve for x
    x = 124,371,136,953.10/440,780.14
  6. Step 6: Final answer
    x = 282,161.39

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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.