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Finding the Fourth Proportional to 639,204.69, 958,557.86 and 239,627.45

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Solution

The fourth proportional to 639,204.69, 958,557.86 and 239,627.45 is: 359,347.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,204.69 : 958,557.86 = 239,627.45 : x
  2. Step 2: Convert to fraction form
    639,204.69/958,557.86 = 239,627.45/x
  3. Step 3: Cross multiply
    639,204.69x = 958,557.86 × 239,627.45
  4. Step 4: Simplify right side
    639,204.69x = 229,696,769,678.33
  5. Step 5: Solve for x
    x = 229,696,769,678.33/639,204.69
  6. Step 6: Final answer
    x = 359,347.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.