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Finding the Fourth Proportional to 339,208.32, 468,310.56 and 212,056.16

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Solution

The fourth proportional to 339,208.32, 468,310.56 and 212,056.16 is: 292,764.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,208.32 : 468,310.56 = 212,056.16 : x
  2. Step 2: Convert to fraction form
    339,208.32/468,310.56 = 212,056.16/x
  3. Step 3: Cross multiply
    339,208.32x = 468,310.56 × 212,056.16
  4. Step 4: Simplify right side
    339,208.32x = 99,308,139,041.05
  5. Step 5: Solve for x
    x = 99,308,139,041.05/339,208.32
  6. Step 6: Final answer
    x = 292,764.46

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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.