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Finding the Fourth Proportional to 331,808.10, 497,712.15 and 121,596.90

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Solution

The fourth proportional to 331,808.10, 497,712.15 and 121,596.90 is: 182,395.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,808.10 : 497,712.15 = 121,596.90 : x
  2. Step 2: Convert to fraction form
    331,808.10/497,712.15 = 121,596.90/x
  3. Step 3: Cross multiply
    331,808.10x = 497,712.15 × 121,596.90
  4. Step 4: Simplify right side
    331,808.10x = 60,520,254,532.34
  5. Step 5: Solve for x
    x = 60,520,254,532.34/331,808.10
  6. Step 6: Final answer
    x = 182,395.35

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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.