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Finding the Fourth Proportional to 353,066.20, 529,404.90 and 142,466.20

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Solution

The fourth proportional to 353,066.20, 529,404.90 and 142,466.20 is: 213,620.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,066.20 : 529,404.90 = 142,466.20 : x
  2. Step 2: Convert to fraction form
    353,066.20/529,404.90 = 142,466.20/x
  3. Step 3: Cross multiply
    353,066.20x = 529,404.90 × 142,466.20
  4. Step 4: Simplify right side
    353,066.20x = 75,422,304,364.38
  5. Step 5: Solve for x
    x = 75,422,304,364.38/353,066.20
  6. Step 6: Final answer
    x = 213,620.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.