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Finding the Fourth Proportional to 316,840.82, 437,233.55 and 173,597.78

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Solution

The fourth proportional to 316,840.82, 437,233.55 and 173,597.78 is: 239,561.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,840.82 : 437,233.55 = 173,597.78 : x
  2. Step 2: Convert to fraction form
    316,840.82/437,233.55 = 173,597.78/x
  3. Step 3: Cross multiply
    316,840.82x = 437,233.55 × 173,597.78
  4. Step 4: Simplify right side
    316,840.82x = 75,902,773,846.61
  5. Step 5: Solve for x
    x = 75,902,773,846.61/316,840.82
  6. Step 6: Final answer
    x = 239,561.23

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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.