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Finding the Fourth Proportional to 330,309.36, 455,829.32 and 179,406.32

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Solution

The fourth proportional to 330,309.36, 455,829.32 and 179,406.32 is: 247,582.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,309.36 : 455,829.32 = 179,406.32 : x
  2. Step 2: Convert to fraction form
    330,309.36/455,829.32 = 179,406.32/x
  3. Step 3: Cross multiply
    330,309.36x = 455,829.32 × 179,406.32
  4. Step 4: Simplify right side
    330,309.36x = 81,778,660,849.30
  5. Step 5: Solve for x
    x = 81,778,660,849.30/330,309.36
  6. Step 6: Final answer
    x = 247,582.03

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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.