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Finding the Fourth Proportional to 606,123.66, 836,247.60 and 391,408.86

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Solution

The fourth proportional to 606,123.66, 836,247.60 and 391,408.86 is: 540,013.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,123.66 : 836,247.60 = 391,408.86 : x
  2. Step 2: Convert to fraction form
    606,123.66/836,247.60 = 391,408.86/x
  3. Step 3: Cross multiply
    606,123.66x = 836,247.60 × 391,408.86
  4. Step 4: Simplify right side
    606,123.66x = 327,314,719,793.74
  5. Step 5: Solve for x
    x = 327,314,719,793.74/606,123.66
  6. Step 6: Final answer
    x = 540,013.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.