Home / 579,489,871.40-869,234,807.10-191,372,604.20

Finding the Fourth Proportional to 579,489,871.40, 869,234,807.10 and 191,372,604.20

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Solution

The fourth proportional to 579,489,871.40, 869,234,807.10 and 191,372,604.20 is: 287,058,906.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,489,871.40 : 869,234,807.10 = 191,372,604.20 : x
  2. Step 2: Convert to fraction form
    579,489,871.40/869,234,807.10 = 191,372,604.20/x
  3. Step 3: Cross multiply
    579,489,871.40x = 869,234,807.10 × 191,372,604.20
  4. Step 4: Simplify right side
    579,489,871.40x = 166,347,728,696,011,648
  5. Step 5: Solve for x
    x = 166,347,728,696,011,648/579,489,871.40
  6. Step 6: Final answer
    x = 287,058,906.30

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Double scale
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Similar ratio
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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.