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Finding the Fourth Proportional to 606,726.72, 909,701.28 and 251,985.60

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Solution

The fourth proportional to 606,726.72, 909,701.28 and 251,985.60 is: 377,816.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,726.72 : 909,701.28 = 251,985.60 : x
  2. Step 2: Convert to fraction form
    606,726.72/909,701.28 = 251,985.60/x
  3. Step 3: Cross multiply
    606,726.72x = 909,701.28 × 251,985.60
  4. Step 4: Simplify right side
    606,726.72x = 229,231,622,861.57
  5. Step 5: Solve for x
    x = 229,231,622,861.57/606,726.72
  6. Step 6: Final answer
    x = 377,816.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.