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Finding the Fourth Proportional to 330,056.91, 495,085.32 and 180,215.46

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Solution

The fourth proportional to 330,056.91, 495,085.32 and 180,215.46 is: 270,323.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,056.91 : 495,085.32 = 180,215.46 : x
  2. Step 2: Convert to fraction form
    330,056.91/495,085.32 = 180,215.46/x
  3. Step 3: Cross multiply
    330,056.91x = 495,085.32 × 180,215.46
  4. Step 4: Simplify right side
    330,056.91x = 89,222,028,683.05
  5. Step 5: Solve for x
    x = 89,222,028,683.05/330,056.91
  6. Step 6: Final answer
    x = 270,323.17

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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.