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Finding the Fourth Proportional to 383,772.74, 529,593.39 and 211,697.55

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Solution

The fourth proportional to 383,772.74, 529,593.39 and 211,697.55 is: 292,135.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,772.74 : 529,593.39 = 211,697.55 : x
  2. Step 2: Convert to fraction form
    383,772.74/529,593.39 = 211,697.55/x
  3. Step 3: Cross multiply
    383,772.74x = 529,593.39 × 211,697.55
  4. Step 4: Simplify right side
    383,772.74x = 112,113,623,159.20
  5. Step 5: Solve for x
    x = 112,113,623,159.20/383,772.74
  6. Step 6: Final answer
    x = 292,135.46

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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.