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Finding the Fourth Proportional to 1,135.87, 1,703.43 and 366.19

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Solution

The fourth proportional to 1,135.87, 1,703.43 and 366.19 is: 549.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,135.87 : 1,703.43 = 366.19 : x
  2. Step 2: Convert to fraction form
    1,135.87/1,703.43 = 366.19/x
  3. Step 3: Cross multiply
    1,135.87x = 1,703.43 × 366.19
  4. Step 4: Simplify right side
    1,135.87x = 623,774.77
  5. Step 5: Solve for x
    x = 623,774.77/1,135.87
  6. Step 6: Final answer
    x = 549.16

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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.