Home / 611,981.97-844,273.15-382,140.23

Finding the Fourth Proportional to 611,981.97, 844,273.15 and 382,140.23

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Solution

The fourth proportional to 611,981.97, 844,273.15 and 382,140.23 is: 527,189.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,981.97 : 844,273.15 = 382,140.23 : x
  2. Step 2: Convert to fraction form
    611,981.97/844,273.15 = 382,140.23/x
  3. Step 3: Cross multiply
    611,981.97x = 844,273.15 × 382,140.23
  4. Step 4: Simplify right side
    611,981.97x = 322,630,735,723.82
  5. Step 5: Solve for x
    x = 322,630,735,723.82/611,981.97
  6. Step 6: Final answer
    x = 527,189.94

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Half scale
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Double scale
Find fourth proportional to 611,982.97, 844,274.53 and 382,141.23
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.