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Finding the Fourth Proportional to 1,475.89, 2,214.15 and 502.63

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Solution

The fourth proportional to 1,475.89, 2,214.15 and 502.63 is: 754.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,475.89 : 2,214.15 = 502.63 : x
  2. Step 2: Convert to fraction form
    1,475.89/2,214.15 = 502.63/x
  3. Step 3: Cross multiply
    1,475.89x = 2,214.15 × 502.63
  4. Step 4: Simplify right side
    1,475.89x = 1,112,898.21
  5. Step 5: Solve for x
    x = 1,112,898.21/1,475.89
  6. Step 6: Final answer
    x = 754.05

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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.