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Finding the Fourth Proportional to 1,010.08, 1,514.14 and 316.26

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Solution

The fourth proportional to 1,010.08, 1,514.14 and 316.26 is: 474.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,010.08 : 1,514.14 = 316.26 : x
  2. Step 2: Convert to fraction form
    1,010.08/1,514.14 = 316.26/x
  3. Step 3: Cross multiply
    1,010.08x = 1,514.14 × 316.26
  4. Step 4: Simplify right side
    1,010.08x = 478,856.84
  5. Step 5: Solve for x
    x = 478,856.84/1,010.08
  6. Step 6: Final answer
    x = 474.08

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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.