Home / 853,772.88-1,178,251.92-491,251.80

Finding the Fourth Proportional to 853,772.88, 1,178,251.92 and 491,251.80

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Solution

The fourth proportional to 853,772.88, 1,178,251.92 and 491,251.80 is: 677,953.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,772.88 : 1,178,251.92 = 491,251.80 : x
  2. Step 2: Convert to fraction form
    853,772.88/1,178,251.92 = 491,251.80/x
  3. Step 3: Cross multiply
    853,772.88x = 1,178,251.92 × 491,251.80
  4. Step 4: Simplify right side
    853,772.88x = 578,818,376,553.46
  5. Step 5: Solve for x
    x = 578,818,376,553.46/853,772.88
  6. Step 6: Final answer
    x = 677,953.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.