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Finding the Fourth Proportional to 577,389.67, 866,028.78 and 177,923.18

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Solution

The fourth proportional to 577,389.67, 866,028.78 and 177,923.18 is: 266,867.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,389.67 : 866,028.78 = 177,923.18 : x
  2. Step 2: Convert to fraction form
    577,389.67/866,028.78 = 177,923.18/x
  3. Step 3: Cross multiply
    577,389.67x = 866,028.78 × 177,923.18
  4. Step 4: Simplify right side
    577,389.67x = 154,086,596,674.19
  5. Step 5: Solve for x
    x = 154,086,596,674.19/577,389.67
  6. Step 6: Final answer
    x = 266,867.60

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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.