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Finding the Fourth Proportional to 331,404.60, 497,106.90 and 263,753.40

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Solution

The fourth proportional to 331,404.60, 497,106.90 and 263,753.40 is: 395,630.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,404.60 : 497,106.90 = 263,753.40 : x
  2. Step 2: Convert to fraction form
    331,404.60/497,106.90 = 263,753.40/x
  3. Step 3: Cross multiply
    331,404.60x = 497,106.90 × 263,753.40
  4. Step 4: Simplify right side
    331,404.60x = 131,113,635,038.46
  5. Step 5: Solve for x
    x = 131,113,635,038.46/331,404.60
  6. Step 6: Final answer
    x = 395,630.10

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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.