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Finding the Fourth Proportional to 1,590.61, 2,195.13 and 882.44

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Solution

The fourth proportional to 1,590.61, 2,195.13 and 882.44 is: 1,217.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,590.61 : 2,195.13 = 882.44 : x
  2. Step 2: Convert to fraction form
    1,590.61/2,195.13 = 882.44/x
  3. Step 3: Cross multiply
    1,590.61x = 2,195.13 × 882.44
  4. Step 4: Simplify right side
    1,590.61x = 1,937,070.52
  5. Step 5: Solve for x
    x = 1,937,070.52/1,590.61
  6. Step 6: Final answer
    x = 1,217.82

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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.