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Finding the Fourth Proportional to 592,810.70, 889,216.05 and 394,436.30

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Solution

The fourth proportional to 592,810.70, 889,216.05 and 394,436.30 is: 591,654.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    592,810.70 : 889,216.05 = 394,436.30 : x
  2. Step 2: Convert to fraction form
    592,810.70/889,216.05 = 394,436.30/x
  3. Step 3: Cross multiply
    592,810.70x = 889,216.05 × 394,436.30
  4. Step 4: Simplify right side
    592,810.70x = 350,739,088,662.62
  5. Step 5: Solve for x
    x = 350,739,088,662.62/592,810.70
  6. Step 6: Final answer
    x = 591,654.45

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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.