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Finding the Fourth Proportional to 492,605.39, 679,795.47 and 266,250.89

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Solution

The fourth proportional to 492,605.39, 679,795.47 and 266,250.89 is: 367,426.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,605.39 : 679,795.47 = 266,250.89 : x
  2. Step 2: Convert to fraction form
    492,605.39/679,795.47 = 266,250.89/x
  3. Step 3: Cross multiply
    492,605.39x = 679,795.47 × 266,250.89
  4. Step 4: Simplify right side
    492,605.39x = 180,996,148,905.47
  5. Step 5: Solve for x
    x = 180,996,148,905.47/492,605.39
  6. Step 6: Final answer
    x = 367,426.25

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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.