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Finding the Fourth Proportional to 330,048.76, 455,472.56 and 179,145.76

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Solution

The fourth proportional to 330,048.76, 455,472.56 and 179,145.76 is: 247,224.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,048.76 : 455,472.56 = 179,145.76 : x
  2. Step 2: Convert to fraction form
    330,048.76/455,472.56 = 179,145.76/x
  3. Step 3: Cross multiply
    330,048.76x = 455,472.56 × 179,145.76
  4. Step 4: Simplify right side
    330,048.76x = 81,595,977,920.35
  5. Step 5: Solve for x
    x = 81,595,977,920.35/330,048.76
  6. Step 6: Final answer
    x = 247,224.01

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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.