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Finding the Fourth Proportional to 381,298.05, 525,972.69 and 237,808.98

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Solution

The fourth proportional to 381,298.05, 525,972.69 and 237,808.98 is: 328,040.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,298.05 : 525,972.69 = 237,808.98 : x
  2. Step 2: Convert to fraction form
    381,298.05/525,972.69 = 237,808.98/x
  3. Step 3: Cross multiply
    381,298.05x = 525,972.69 × 237,808.98
  4. Step 4: Simplify right side
    381,298.05x = 125,081,028,916.76
  5. Step 5: Solve for x
    x = 125,081,028,916.76/381,298.05
  6. Step 6: Final answer
    x = 328,040.04

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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.