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Finding the Fourth Proportional to 484,318.48, 668,342.68 and 266,506.80

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Solution

The fourth proportional to 484,318.48, 668,342.68 and 266,506.80 is: 367,770.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,318.48 : 668,342.68 = 266,506.80 : x
  2. Step 2: Convert to fraction form
    484,318.48/668,342.68 = 266,506.80/x
  3. Step 3: Cross multiply
    484,318.48x = 668,342.68 × 266,506.80
  4. Step 4: Simplify right side
    484,318.48x = 178,117,868,950.22
  5. Step 5: Solve for x
    x = 178,117,868,950.22/484,318.48
  6. Step 6: Final answer
    x = 367,770.13

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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.