Home / 809,239.31-1,116,583.53-465,008.72

Finding the Fourth Proportional to 809,239.31, 1,116,583.53 and 465,008.72

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Solution

The fourth proportional to 809,239.31, 1,116,583.53 and 465,008.72 is: 641,616.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,239.31 : 1,116,583.53 = 465,008.72 : x
  2. Step 2: Convert to fraction form
    809,239.31/1,116,583.53 = 465,008.72/x
  3. Step 3: Cross multiply
    809,239.31x = 1,116,583.53 × 465,008.72
  4. Step 4: Simplify right side
    809,239.31x = 519,221,078,058.38
  5. Step 5: Solve for x
    x = 519,221,078,058.38/809,239.31
  6. Step 6: Final answer
    x = 641,616.23

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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.