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Finding the Fourth Proportional to 1,134.84, 1,702.30 and 355.36

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Solution

The fourth proportional to 1,134.84, 1,702.30 and 355.36 is: 533.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,134.84 : 1,702.30 = 355.36 : x
  2. Step 2: Convert to fraction form
    1,134.84/1,702.30 = 355.36/x
  3. Step 3: Cross multiply
    1,134.84x = 1,702.30 × 355.36
  4. Step 4: Simplify right side
    1,134.84x = 604,929.33
  5. Step 5: Solve for x
    x = 604,929.33/1,134.84
  6. Step 6: Final answer
    x = 533.05

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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.