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Finding the Fourth Proportional to 230,812.60, 346,218.90 and 219,926.20

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Solution

The fourth proportional to 230,812.60, 346,218.90 and 219,926.20 is: 329,889.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,812.60 : 346,218.90 = 219,926.20 : x
  2. Step 2: Convert to fraction form
    230,812.60/346,218.90 = 219,926.20/x
  3. Step 3: Cross multiply
    230,812.60x = 346,218.90 × 219,926.20
  4. Step 4: Simplify right side
    230,812.60x = 76,142,607,045.18
  5. Step 5: Solve for x
    x = 76,142,607,045.18/230,812.60
  6. Step 6: Final answer
    x = 329,889.30

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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.