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Finding the Fourth Proportional to 330,009.42, 455,412.96 and 179,106.42

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Solution

The fourth proportional to 330,009.42, 455,412.96 and 179,106.42 is: 247,166.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,009.42 : 455,412.96 = 179,106.42 : x
  2. Step 2: Convert to fraction form
    330,009.42/455,412.96 = 179,106.42/x
  3. Step 3: Cross multiply
    330,009.42x = 455,412.96 × 179,106.42
  4. Step 4: Simplify right side
    330,009.42x = 81,567,384,887.20
  5. Step 5: Solve for x
    x = 81,567,384,887.20/330,009.42
  6. Step 6: Final answer
    x = 247,166.84

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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.