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Finding the Fourth Proportional to 1,455.83, 2,010.08 and 896.48

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Solution

The fourth proportional to 1,455.83, 2,010.08 and 896.48 is: 1,237.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,455.83 : 2,010.08 = 896.48 : x
  2. Step 2: Convert to fraction form
    1,455.83/2,010.08 = 896.48/x
  3. Step 3: Cross multiply
    1,455.83x = 2,010.08 × 896.48
  4. Step 4: Simplify right side
    1,455.83x = 1,801,988.71
  5. Step 5: Solve for x
    x = 1,801,988.71/1,455.83
  6. Step 6: Final answer
    x = 1,237.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.