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Finding the Fourth Proportional to 606,852.78, 910,279.20 and 163,620.78

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Solution

The fourth proportional to 606,852.78, 910,279.20 and 163,620.78 is: 245,431.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,852.78 : 910,279.20 = 163,620.78 : x
  2. Step 2: Convert to fraction form
    606,852.78/910,279.20 = 163,620.78/x
  3. Step 3: Cross multiply
    606,852.78x = 910,279.20 × 163,620.78
  4. Step 4: Simplify right side
    606,852.78x = 148,940,592,721.78
  5. Step 5: Solve for x
    x = 148,940,592,721.78/606,852.78
  6. Step 6: Final answer
    x = 245,431.18

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Similar ratio
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1.5x scale

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.