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Finding the Fourth Proportional to 343,894.60, 515,841.90 and 341,926.30

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Solution

The fourth proportional to 343,894.60, 515,841.90 and 341,926.30 is: 512,889.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,894.60 : 515,841.90 = 341,926.30 : x
  2. Step 2: Convert to fraction form
    343,894.60/515,841.90 = 341,926.30/x
  3. Step 3: Cross multiply
    343,894.60x = 515,841.90 × 341,926.30
  4. Step 4: Simplify right side
    343,894.60x = 176,379,912,251.97
  5. Step 5: Solve for x
    x = 176,379,912,251.97/343,894.60
  6. Step 6: Final answer
    x = 512,889.45

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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.