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Finding the Fourth Proportional to 258,446.39, 356,603.72 and 150,995.66

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Solution

The fourth proportional to 258,446.39, 356,603.72 and 150,995.66 is: 208,343.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,446.39 : 356,603.72 = 150,995.66 : x
  2. Step 2: Convert to fraction form
    258,446.39/356,603.72 = 150,995.66/x
  3. Step 3: Cross multiply
    258,446.39x = 356,603.72 × 150,995.66
  4. Step 4: Simplify right side
    258,446.39x = 53,845,611,521.86
  5. Step 5: Solve for x
    x = 53,845,611,521.86/258,446.39
  6. Step 6: Final answer
    x = 208,343.45

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1.5x scale

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.