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Finding the Fourth Proportional to 356,245.97, 534,365.44 and 153,985.12

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Solution

The fourth proportional to 356,245.97, 534,365.44 and 153,985.12 is: 230,976.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,245.97 : 534,365.44 = 153,985.12 : x
  2. Step 2: Convert to fraction form
    356,245.97/534,365.44 = 153,985.12/x
  3. Step 3: Cross multiply
    356,245.97x = 534,365.44 × 153,985.12
  4. Step 4: Simplify right side
    356,245.97x = 82,284,324,681.38
  5. Step 5: Solve for x
    x = 82,284,324,681.38/356,245.97
  6. Step 6: Final answer
    x = 230,976.16

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1.5x scale

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.