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Finding the Fourth Proportional to 592,807.70, 889,211.55 and 394,433.30

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Solution

The fourth proportional to 592,807.70, 889,211.55 and 394,433.30 is: 591,649.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    592,807.70 : 889,211.55 = 394,433.30 : x
  2. Step 2: Convert to fraction form
    592,807.70/889,211.55 = 394,433.30/x
  3. Step 3: Cross multiply
    592,807.70x = 889,211.55 × 394,433.30
  4. Step 4: Simplify right side
    592,807.70x = 350,734,646,064.62
  5. Step 5: Solve for x
    x = 350,734,646,064.62/592,807.70
  6. Step 6: Final answer
    x = 591,649.95

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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.