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Finding the Fourth Proportional to 592,808.70, 889,213.05 and 394,434.30

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Solution

The fourth proportional to 592,808.70, 889,213.05 and 394,434.30 is: 591,651.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    592,808.70 : 889,213.05 = 394,434.30 : x
  2. Step 2: Convert to fraction form
    592,808.70/889,213.05 = 394,434.30/x
  3. Step 3: Cross multiply
    592,808.70x = 889,213.05 × 394,434.30
  4. Step 4: Simplify right side
    592,808.70x = 350,736,126,927.62
  5. Step 5: Solve for x
    x = 350,736,126,927.62/592,808.70
  6. Step 6: Final answer
    x = 591,651.45

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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.