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Finding the Fourth Proportional to 374,408.60, 561,612.90 and 164,456.60

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Solution

The fourth proportional to 374,408.60, 561,612.90 and 164,456.60 is: 246,684.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,408.60 : 561,612.90 = 164,456.60 : x
  2. Step 2: Convert to fraction form
    374,408.60/561,612.90 = 164,456.60/x
  3. Step 3: Cross multiply
    374,408.60x = 561,612.90 × 164,456.60
  4. Step 4: Simplify right side
    374,408.60x = 92,360,948,050.14
  5. Step 5: Solve for x
    x = 92,360,948,050.14/374,408.60
  6. Step 6: Final answer
    x = 246,684.90

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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.