Home / 411,830.27-618,144.87-198,748.16

Finding the Fourth Proportional to 411,830.27, 618,144.87 and 198,748.16

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Solution

The fourth proportional to 411,830.27, 618,144.87 and 198,748.16 is: 298,315.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,830.27 : 618,144.87 = 198,748.16 : x
  2. Step 2: Convert to fraction form
    411,830.27/618,144.87 = 198,748.16/x
  3. Step 3: Cross multiply
    411,830.27x = 618,144.87 × 198,748.16
  4. Step 4: Simplify right side
    411,830.27x = 122,855,152,435.22
  5. Step 5: Solve for x
    x = 122,855,152,435.22/411,830.27
  6. Step 6: Final answer
    x = 298,315.01

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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.