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Finding the Fourth Proportional to 439,990.17, 607,186.44 and 238,786.17

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Solution

The fourth proportional to 439,990.17, 607,186.44 and 238,786.17 is: 329,524.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,990.17 : 607,186.44 = 238,786.17 : x
  2. Step 2: Convert to fraction form
    439,990.17/607,186.44 = 238,786.17/x
  3. Step 3: Cross multiply
    439,990.17x = 607,186.44 × 238,786.17
  4. Step 4: Simplify right side
    439,990.17x = 144,987,724,483.54
  5. Step 5: Solve for x
    x = 144,987,724,483.54/439,990.17
  6. Step 6: Final answer
    x = 329,524.92

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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.