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Finding the Fourth Proportional to 662,678.75, 994,018.13 and 164,042.75

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Solution

The fourth proportional to 662,678.75, 994,018.13 and 164,042.75 is: 246,064.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,678.75 : 994,018.13 = 164,042.75 : x
  2. Step 2: Convert to fraction form
    662,678.75/994,018.13 = 164,042.75/x
  3. Step 3: Cross multiply
    662,678.75x = 994,018.13 × 164,042.75
  4. Step 4: Simplify right side
    662,678.75x = 163,061,467,595.06
  5. Step 5: Solve for x
    x = 163,061,467,595.06/662,678.75
  6. Step 6: Final answer
    x = 246,064.13

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Double scale
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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.