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Finding the Fourth Proportional to 481,087.76, 663,902.40 and 266,242.64

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Solution

The fourth proportional to 481,087.76, 663,902.40 and 266,242.64 is: 367,415.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,087.76 : 663,902.40 = 266,242.64 : x
  2. Step 2: Convert to fraction form
    481,087.76/663,902.40 = 266,242.64/x
  3. Step 3: Cross multiply
    481,087.76x = 663,902.40 × 266,242.64
  4. Step 4: Simplify right side
    481,087.76x = 176,759,127,678.34
  5. Step 5: Solve for x
    x = 176,759,127,678.34/481,087.76
  6. Step 6: Final answer
    x = 367,415.56

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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.