Home / 2,156,516.16-3,234,220.66-639,840.30

Finding the Fourth Proportional to 2,156,516.16, 3,234,220.66 and 639,840.30

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Solution

The fourth proportional to 2,156,516.16, 3,234,220.66 and 639,840.30 is: 959,596.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,156,516.16 : 3,234,220.66 = 639,840.30 : x
  2. Step 2: Convert to fraction form
    2,156,516.16/3,234,220.66 = 639,840.30/x
  3. Step 3: Cross multiply
    2,156,516.16x = 3,234,220.66 × 639,840.30
  4. Step 4: Simplify right side
    2,156,516.16x = 2,069,384,717,360.60
  5. Step 5: Solve for x
    x = 2,069,384,717,360.60/2,156,516.16
  6. Step 6: Final answer
    x = 959,596.20

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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.