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Finding the Fourth Proportional to 330,166.80, 495,250.20 and 310,483.80

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Solution

The fourth proportional to 330,166.80, 495,250.20 and 310,483.80 is: 465,725.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,166.80 : 495,250.20 = 310,483.80 : x
  2. Step 2: Convert to fraction form
    330,166.80/495,250.20 = 310,483.80/x
  3. Step 3: Cross multiply
    330,166.80x = 495,250.20 × 310,483.80
  4. Step 4: Simplify right side
    330,166.80x = 153,767,164,046.76
  5. Step 5: Solve for x
    x = 153,767,164,046.76/330,166.80
  6. Step 6: Final answer
    x = 465,725.70

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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.