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Finding the Fourth Proportional to 593,998.70, 890,998.05 and 214,918.70

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Solution

The fourth proportional to 593,998.70, 890,998.05 and 214,918.70 is: 322,378.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    593,998.70 : 890,998.05 = 214,918.70 : x
  2. Step 2: Convert to fraction form
    593,998.70/890,998.05 = 214,918.70/x
  3. Step 3: Cross multiply
    593,998.70x = 890,998.05 × 214,918.70
  4. Step 4: Simplify right side
    593,998.70x = 191,492,142,608.54
  5. Step 5: Solve for x
    x = 191,492,142,608.54/593,998.70
  6. Step 6: Final answer
    x = 322,378.05

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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.