Home / 828,665.39-1,142,910.22-538,370.36

Finding the Fourth Proportional to 828,665.39, 1,142,910.22 and 538,370.36

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Solution

The fourth proportional to 828,665.39, 1,142,910.22 and 538,370.36 is: 742,530.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,665.39 : 1,142,910.22 = 538,370.36 : x
  2. Step 2: Convert to fraction form
    828,665.39/1,142,910.22 = 538,370.36/x
  3. Step 3: Cross multiply
    828,665.39x = 1,142,910.22 × 538,370.36
  4. Step 4: Simplify right side
    828,665.39x = 615,308,986,589.08
  5. Step 5: Solve for x
    x = 615,308,986,589.08/828,665.39
  6. Step 6: Final answer
    x = 742,530.09

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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.