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Finding the Fourth Proportional to 350,302.78, 523,534.78 and 255,732.11

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Solution

The fourth proportional to 350,302.78, 523,534.78 and 255,732.11 is: 382,196.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,302.78 : 523,534.78 = 255,732.11 : x
  2. Step 2: Convert to fraction form
    350,302.78/523,534.78 = 255,732.11/x
  3. Step 3: Cross multiply
    350,302.78x = 523,534.78 × 255,732.11
  4. Step 4: Simplify right side
    350,302.78x = 133,884,653,947.79
  5. Step 5: Solve for x
    x = 133,884,653,947.79/350,302.78
  6. Step 6: Final answer
    x = 382,196.95

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.