Home / 424,440.11-636,840.21-199,795.58

Finding the Fourth Proportional to 424,440.11, 636,840.21 and 199,795.58

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Solution

The fourth proportional to 424,440.11, 636,840.21 and 199,795.58 is: 299,778.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,440.11 : 636,840.21 = 199,795.58 : x
  2. Step 2: Convert to fraction form
    424,440.11/636,840.21 = 199,795.58/x
  3. Step 3: Cross multiply
    424,440.11x = 636,840.21 × 199,795.58
  4. Step 4: Simplify right side
    424,440.11x = 127,237,855,940.07
  5. Step 5: Solve for x
    x = 127,237,855,940.07/424,440.11
  6. Step 6: Final answer
    x = 299,778.12

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1.5x scale

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.