Home / 611,985.97-844,278.67-382,144.23

Finding the Fourth Proportional to 611,985.97, 844,278.67 and 382,144.23

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Solution

The fourth proportional to 611,985.97, 844,278.67 and 382,144.23 is: 527,195.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,985.97 : 844,278.67 = 382,144.23 : x
  2. Step 2: Convert to fraction form
    611,985.97/844,278.67 = 382,144.23/x
  3. Step 3: Cross multiply
    611,985.97x = 844,278.67 × 382,144.23
  4. Step 4: Simplify right side
    611,985.97x = 322,636,222,252.57
  5. Step 5: Solve for x
    x = 322,636,222,252.57/611,985.97
  6. Step 6: Final answer
    x = 527,195.46

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Double scale
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Similar ratio
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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.