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Finding the Fourth Proportional to 515,177.44, 710,981.22 and 285,808.12

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Solution

The fourth proportional to 515,177.44, 710,981.22 and 285,808.12 is: 394,435.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,177.44 : 710,981.22 = 285,808.12 : x
  2. Step 2: Convert to fraction form
    515,177.44/710,981.22 = 285,808.12/x
  3. Step 3: Cross multiply
    515,177.44x = 710,981.22 × 285,808.12
  4. Step 4: Simplify right side
    515,177.44x = 203,204,205,843.51
  5. Step 5: Solve for x
    x = 203,204,205,843.51/515,177.44
  6. Step 6: Final answer
    x = 394,435.37

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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.