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Finding the Fourth Proportional to 481,036.62, 663,802.89 and 266,165.90

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Solution

The fourth proportional to 481,036.62, 663,802.89 and 266,165.90 is: 367,293.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,036.62 : 663,802.89 = 266,165.90 : x
  2. Step 2: Convert to fraction form
    481,036.62/663,802.89 = 266,165.90/x
  3. Step 3: Cross multiply
    481,036.62x = 663,802.89 × 266,165.90
  4. Step 4: Simplify right side
    481,036.62x = 176,681,693,639.45
  5. Step 5: Solve for x
    x = 176,681,693,639.45/481,036.62
  6. Step 6: Final answer
    x = 367,293.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.