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Finding the Fourth Proportional to 907.46, 1,251.90 and 592.84

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Solution

The fourth proportional to 907.46, 1,251.90 and 592.84 is: 817.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    907.46 : 1,251.90 = 592.84 : x
  2. Step 2: Convert to fraction form
    907.46/1,251.90 = 592.84/x
  3. Step 3: Cross multiply
    907.46x = 1,251.90 × 592.84
  4. Step 4: Simplify right side
    907.46x = 742,176.40
  5. Step 5: Solve for x
    x = 742,176.40/907.46
  6. Step 6: Final answer
    x = 817.86

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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.