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Finding the Fourth Proportional to 577,389.89, 866,029.15 and 177,923.40

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Solution

The fourth proportional to 577,389.89, 866,029.15 and 177,923.40 is: 266,867.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,389.89 : 866,029.15 = 177,923.40 : x
  2. Step 2: Convert to fraction form
    577,389.89/866,029.15 = 177,923.40/x
  3. Step 3: Cross multiply
    577,389.89x = 866,029.15 × 177,923.40
  4. Step 4: Simplify right side
    577,389.89x = 154,086,850,867.11
  5. Step 5: Solve for x
    x = 154,086,850,867.11/577,389.89
  6. Step 6: Final answer
    x = 266,867.94

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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.