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Finding the Fourth Proportional to 484,638.26, 668,807.16 and 266,872.46

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Solution

The fourth proportional to 484,638.26, 668,807.16 and 266,872.46 is: 368,287.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,638.26 : 668,807.16 = 266,872.46 : x
  2. Step 2: Convert to fraction form
    484,638.26/668,807.16 = 266,872.46/x
  3. Step 3: Cross multiply
    484,638.26x = 668,807.16 × 266,872.46
  4. Step 4: Simplify right side
    484,638.26x = 178,486,212,054.81
  5. Step 5: Solve for x
    x = 178,486,212,054.81/484,638.26
  6. Step 6: Final answer
    x = 368,287.50

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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.