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Finding the Fourth Proportional to 1,590.62, 2,195.08 and 882.49

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Solution

The fourth proportional to 1,590.62, 2,195.08 and 882.49 is: 1,217.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,590.62 : 2,195.08 = 882.49 : x
  2. Step 2: Convert to fraction form
    1,590.62/2,195.08 = 882.49/x
  3. Step 3: Cross multiply
    1,590.62x = 2,195.08 × 882.49
  4. Step 4: Simplify right side
    1,590.62x = 1,937,133.43
  5. Step 5: Solve for x
    x = 1,937,133.43/1,590.62
  6. Step 6: Final answer
    x = 1,217.84

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1.5x scale

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.