Home / 330,192.60-495,288.90-172,384.35

Finding the Fourth Proportional to 330,192.60, 495,288.90 and 172,384.35

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Solution

The fourth proportional to 330,192.60, 495,288.90 and 172,384.35 is: 258,576.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,192.60 : 495,288.90 = 172,384.35 : x
  2. Step 2: Convert to fraction form
    330,192.60/495,288.90 = 172,384.35/x
  3. Step 3: Cross multiply
    330,192.60x = 495,288.90 × 172,384.35
  4. Step 4: Simplify right side
    330,192.60x = 85,380,055,088.72
  5. Step 5: Solve for x
    x = 85,380,055,088.72/330,192.60
  6. Step 6: Final answer
    x = 258,576.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.