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Finding the Fourth Proportional to 347,097.60, 520,063.20 and 169,221.60

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Solution

The fourth proportional to 347,097.60, 520,063.20 and 169,221.60 is: 253,548.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,097.60 : 520,063.20 = 169,221.60 : x
  2. Step 2: Convert to fraction form
    347,097.60/520,063.20 = 169,221.60/x
  3. Step 3: Cross multiply
    347,097.60x = 520,063.20 × 169,221.60
  4. Step 4: Simplify right side
    347,097.60x = 88,005,926,805.12
  5. Step 5: Solve for x
    x = 88,005,926,805.12/347,097.60
  6. Step 6: Final answer
    x = 253,548.07

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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.