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Finding the Fourth Proportional to 383,483.32, 529,208.64 and 211,397.56

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Solution

The fourth proportional to 383,483.32, 529,208.64 and 211,397.56 is: 291,729.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,483.32 : 529,208.64 = 211,397.56 : x
  2. Step 2: Convert to fraction form
    383,483.32/529,208.64 = 211,397.56/x
  3. Step 3: Cross multiply
    383,483.32x = 529,208.64 × 211,397.56
  4. Step 4: Simplify right side
    383,483.32x = 111,873,415,226.92
  5. Step 5: Solve for x
    x = 111,873,415,226.92/383,483.32
  6. Step 6: Final answer
    x = 291,729.55

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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.