Home / 1,277,697.53-1,916,131.69-424,540.11

Finding the Fourth Proportional to 1,277,697.53, 1,916,131.69 and 424,540.11

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Solution

The fourth proportional to 1,277,697.53, 1,916,131.69 and 424,540.11 is: 636,672.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,277,697.53 : 1,916,131.69 = 424,540.11 : x
  2. Step 2: Convert to fraction form
    1,277,697.53/1,916,131.69 = 424,540.11/x
  3. Step 3: Cross multiply
    1,277,697.53x = 1,916,131.69 × 424,540.11
  4. Step 4: Simplify right side
    1,277,697.53x = 813,474,755,846.81
  5. Step 5: Solve for x
    x = 813,474,755,846.81/1,277,697.53
  6. Step 6: Final answer
    x = 636,672.40

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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.