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Finding the Fourth Proportional to 526.04, 787.92 and 269

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Solution

The fourth proportional to 526.04, 787.92 and 269 is: 402.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    526.04 : 787.92 = 269 : x
  2. Step 2: Convert to fraction form
    526.04/787.92 = 269/x
  3. Step 3: Cross multiply
    526.04x = 787.92 × 269
  4. Step 4: Simplify right side
    526.04x = 211,950.48
  5. Step 5: Solve for x
    x = 211,950.48/526.04
  6. Step 6: Final answer
    x = 402.92

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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.