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Finding the Fourth Proportional to 339,615.60, 468,524.16 and 212,069.76

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Solution

The fourth proportional to 339,615.60, 468,524.16 and 212,069.76 is: 292,565.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,615.60 : 468,524.16 = 212,069.76 : x
  2. Step 2: Convert to fraction form
    339,615.60/468,524.16 = 212,069.76/x
  3. Step 3: Cross multiply
    339,615.60x = 468,524.16 × 212,069.76
  4. Step 4: Simplify right side
    339,615.60x = 99,359,806,165.40
  5. Step 5: Solve for x
    x = 99,359,806,165.40/339,615.60
  6. Step 6: Final answer
    x = 292,565.50

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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.