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Finding the Fourth Proportional to 330,077.76, 455,506.92 and 179,174.76

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Solution

The fourth proportional to 330,077.76, 455,506.92 and 179,174.76 is: 247,260.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,077.76 : 455,506.92 = 179,174.76 : x
  2. Step 2: Convert to fraction form
    330,077.76/455,506.92 = 179,174.76/x
  3. Step 3: Cross multiply
    330,077.76x = 455,506.92 × 179,174.76
  4. Step 4: Simplify right side
    330,077.76x = 81,615,343,069.34
  5. Step 5: Solve for x
    x = 81,615,343,069.34/330,077.76
  6. Step 6: Final answer
    x = 247,260.96

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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.