Home / 555,786.11-766,985.33-301,137.29

Finding the Fourth Proportional to 555,786.11, 766,985.33 and 301,137.29

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Solution

The fourth proportional to 555,786.11, 766,985.33 and 301,137.29 is: 415,569.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,786.11 : 766,985.33 = 301,137.29 : x
  2. Step 2: Convert to fraction form
    555,786.11/766,985.33 = 301,137.29/x
  3. Step 3: Cross multiply
    555,786.11x = 766,985.33 × 301,137.29
  4. Step 4: Simplify right side
    555,786.11x = 230,967,887,007.41
  5. Step 5: Solve for x
    x = 230,967,887,007.41/555,786.11
  6. Step 6: Final answer
    x = 415,569.74

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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.