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Finding the Fourth Proportional to 1,462.24, 2,193.12 and 436

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Solution

The fourth proportional to 1,462.24, 2,193.12 and 436 is: 653.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,462.24 : 2,193.12 = 436 : x
  2. Step 2: Convert to fraction form
    1,462.24/2,193.12 = 436/x
  3. Step 3: Cross multiply
    1,462.24x = 2,193.12 × 436
  4. Step 4: Simplify right side
    1,462.24x = 956,200.32
  5. Step 5: Solve for x
    x = 956,200.32/1,462.24
  6. Step 6: Final answer
    x = 653.93

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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.