Home / 491,167.23-677,809.77-276,307.47

Finding the Fourth Proportional to 491,167.23, 677,809.77 and 276,307.47

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Solution

The fourth proportional to 491,167.23, 677,809.77 and 276,307.47 is: 381,303.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,167.23 : 677,809.77 = 276,307.47 : x
  2. Step 2: Convert to fraction form
    491,167.23/677,809.77 = 276,307.47/x
  3. Step 3: Cross multiply
    491,167.23x = 677,809.77 × 276,307.47
  4. Step 4: Simplify right side
    491,167.23x = 187,283,902,689.98
  5. Step 5: Solve for x
    x = 187,283,902,689.98/491,167.23
  6. Step 6: Final answer
    x = 381,303.74

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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.