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Finding the Fourth Proportional to 319,761.60, 441,259.42 and 176,518.56

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Solution

The fourth proportional to 319,761.60, 441,259.42 and 176,518.56 is: 243,589.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,761.60 : 441,259.42 = 176,518.56 : x
  2. Step 2: Convert to fraction form
    319,761.60/441,259.42 = 176,518.56/x
  3. Step 3: Cross multiply
    319,761.60x = 441,259.42 × 176,518.56
  4. Step 4: Simplify right side
    319,761.60x = 77,890,477,404.84
  5. Step 5: Solve for x
    x = 77,890,477,404.84/319,761.60
  6. Step 6: Final answer
    x = 243,589.22

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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.