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Finding the Fourth Proportional to 339,602.22, 468,653.31 and 212,352.30

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Solution

The fourth proportional to 339,602.22, 468,653.31 and 212,352.30 is: 293,047.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,602.22 : 468,653.31 = 212,352.30 : x
  2. Step 2: Convert to fraction form
    339,602.22/468,653.31 = 212,352.30/x
  3. Step 3: Cross multiply
    339,602.22x = 468,653.31 × 212,352.30
  4. Step 4: Simplify right side
    339,602.22x = 99,519,608,281.11
  5. Step 5: Solve for x
    x = 99,519,608,281.11/339,602.22
  6. Step 6: Final answer
    x = 293,047.58

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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.