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Finding the Fourth Proportional to 291,932.40, 437,207.40 and 197,929.20

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Solution

The fourth proportional to 291,932.40, 437,207.40 and 197,929.20 is: 296,425.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,932.40 : 437,207.40 = 197,929.20 : x
  2. Step 2: Convert to fraction form
    291,932.40/437,207.40 = 197,929.20/x
  3. Step 3: Cross multiply
    291,932.40x = 437,207.40 × 197,929.20
  4. Step 4: Simplify right side
    291,932.40x = 86,536,110,916.08
  5. Step 5: Solve for x
    x = 86,536,110,916.08/291,932.40
  6. Step 6: Final answer
    x = 296,425.17

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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.