Home / 323,621.80-485,432.70-181,904.20

Finding the Fourth Proportional to 323,621.80, 485,432.70 and 181,904.20

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Solution

The fourth proportional to 323,621.80, 485,432.70 and 181,904.20 is: 272,856.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,621.80 : 485,432.70 = 181,904.20 : x
  2. Step 2: Convert to fraction form
    323,621.80/485,432.70 = 181,904.20/x
  3. Step 3: Cross multiply
    323,621.80x = 485,432.70 × 181,904.20
  4. Step 4: Simplify right side
    323,621.80x = 88,302,246,947.34
  5. Step 5: Solve for x
    x = 88,302,246,947.34/323,621.80
  6. Step 6: Final answer
    x = 272,856.30

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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.