Home / 330,091.20-455,479.20-186,842.70

Finding the Fourth Proportional to 330,091.20, 455,479.20 and 186,842.70

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Solution

The fourth proportional to 330,091.20, 455,479.20 and 186,842.70 is: 257,816.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,091.20 : 455,479.20 = 186,842.70 : x
  2. Step 2: Convert to fraction form
    330,091.20/455,479.20 = 186,842.70/x
  3. Step 3: Cross multiply
    330,091.20x = 455,479.20 × 186,842.70
  4. Step 4: Simplify right side
    330,091.20x = 85,102,963,521.84
  5. Step 5: Solve for x
    x = 85,102,963,521.84/330,091.20
  6. Step 6: Final answer
    x = 257,816.52

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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.