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Finding the Fourth Proportional to 522, 783.24 and 294

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Solution

The fourth proportional to 522, 783.24 and 294 is: 441.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    522 : 783.24 = 294 : x
  2. Step 2: Convert to fraction form
    522/783.24 = 294/x
  3. Step 3: Cross multiply
    522x = 783.24 × 294
  4. Step 4: Simplify right side
    522x = 230,272.56
  5. Step 5: Solve for x
    x = 230,272.56/522
  6. Step 6: Final answer
    x = 441.14

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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.