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Finding the Fourth Proportional to 1,110.53, 1,663.49 and 526.03

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Solution

The fourth proportional to 1,110.53, 1,663.49 and 526.03 is: 787.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,110.53 : 1,663.49 = 526.03 : x
  2. Step 2: Convert to fraction form
    1,110.53/1,663.49 = 526.03/x
  3. Step 3: Cross multiply
    1,110.53x = 1,663.49 × 526.03
  4. Step 4: Simplify right side
    1,110.53x = 875,042.80
  5. Step 5: Solve for x
    x = 875,042.80/1,110.53
  6. Step 6: Final answer
    x = 787.95

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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.