Home / 424,531.14-636,667.10-120,950.09

Finding the Fourth Proportional to 424,531.14, 636,667.10 and 120,950.09

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Solution

The fourth proportional to 424,531.14, 636,667.10 and 120,950.09 is: 181,388.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,531.14 : 636,667.10 = 120,950.09 : x
  2. Step 2: Convert to fraction form
    424,531.14/636,667.10 = 120,950.09/x
  3. Step 3: Cross multiply
    424,531.14x = 636,667.10 × 120,950.09
  4. Step 4: Simplify right side
    424,531.14x = 77,004,939,256.95
  5. Step 5: Solve for x
    x = 77,004,939,256.95/424,531.14
  6. Step 6: Final answer
    x = 181,388.20

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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.