Home / 856,498.23-1,283,345.78-518,514.46

Finding the Fourth Proportional to 856,498.23, 1,283,345.78 and 518,514.46

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Solution

The fourth proportional to 856,498.23, 1,283,345.78 and 518,514.46 is: 776,923.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,498.23 : 1,283,345.78 = 518,514.46 : x
  2. Step 2: Convert to fraction form
    856,498.23/1,283,345.78 = 518,514.46/x
  3. Step 3: Cross multiply
    856,498.23x = 1,283,345.78 × 518,514.46
  4. Step 4: Simplify right side
    856,498.23x = 665,433,338,309.04
  5. Step 5: Solve for x
    x = 665,433,338,309.04/856,498.23
  6. Step 6: Final answer
    x = 776,923.19

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1.5x scale

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.