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Finding the Fourth Proportional to 492,659.47, 679,869.77 and 266,304.97

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Solution

The fourth proportional to 492,659.47, 679,869.77 and 266,304.97 is: 367,500.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,659.47 : 679,869.77 = 266,304.97 : x
  2. Step 2: Convert to fraction form
    492,659.47/679,869.77 = 266,304.97/x
  3. Step 3: Cross multiply
    492,659.47x = 679,869.77 × 266,304.97
  4. Step 4: Simplify right side
    492,659.47x = 181,052,698,703.76
  5. Step 5: Solve for x
    x = 181,052,698,703.76/492,659.47
  6. Step 6: Final answer
    x = 367,500.70

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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.