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Finding the Fourth Proportional to 577,388.39, 866,026.91 and 177,921.90

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Solution

The fourth proportional to 577,388.39, 866,026.91 and 177,921.90 is: 266,865.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,388.39 : 866,026.91 = 177,921.90 : x
  2. Step 2: Convert to fraction form
    577,388.39/866,026.91 = 177,921.90/x
  3. Step 3: Cross multiply
    577,388.39x = 866,026.91 × 177,921.90
  4. Step 4: Simplify right side
    577,388.39x = 154,085,152,722.32
  5. Step 5: Solve for x
    x = 154,085,152,722.32/577,388.39
  6. Step 6: Final answer
    x = 266,865.70

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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.