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Finding the Fourth Proportional to 611,627.18, 844,016.85 and 339,711.66

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Solution

The fourth proportional to 611,627.18, 844,016.85 and 339,711.66 is: 468,786.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,627.18 : 844,016.85 = 339,711.66 : x
  2. Step 2: Convert to fraction form
    611,627.18/844,016.85 = 339,711.66/x
  3. Step 3: Cross multiply
    611,627.18x = 844,016.85 × 339,711.66
  4. Step 4: Simplify right side
    611,627.18x = 286,722,365,181.47
  5. Step 5: Solve for x
    x = 286,722,365,181.47/611,627.18
  6. Step 6: Final answer
    x = 468,786.18

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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.