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Finding the Fourth Proportional to 577,382.90, 866,018.69 and 177,916.42

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Solution

The fourth proportional to 577,382.90, 866,018.69 and 177,916.42 is: 266,857.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,382.90 : 866,018.69 = 177,916.42 : x
  2. Step 2: Convert to fraction form
    577,382.90/866,018.69 = 177,916.42/x
  3. Step 3: Cross multiply
    577,382.90x = 866,018.69 × 177,916.42
  4. Step 4: Simplify right side
    577,382.90x = 154,078,940,966.66
  5. Step 5: Solve for x
    x = 154,078,940,966.66/577,382.90
  6. Step 6: Final answer
    x = 266,857.47

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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.