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Finding the Fourth Proportional to 342,280.80, 512,983.80 and 164,404.80

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Solution

The fourth proportional to 342,280.80, 512,983.80 and 164,404.80 is: 246,397.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,280.80 : 512,983.80 = 164,404.80 : x
  2. Step 2: Convert to fraction form
    342,280.80/512,983.80 = 164,404.80/x
  3. Step 3: Cross multiply
    342,280.80x = 512,983.80 × 164,404.80
  4. Step 4: Simplify right side
    342,280.80x = 84,336,999,042.24
  5. Step 5: Solve for x
    x = 84,336,999,042.24/342,280.80
  6. Step 6: Final answer
    x = 246,397.11

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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.