Home / 547,044.12-820,631.70-167,915.20

Finding the Fourth Proportional to 547,044.12, 820,631.70 and 167,915.20

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Solution

The fourth proportional to 547,044.12, 820,631.70 and 167,915.20 is: 251,892.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,044.12 : 820,631.70 = 167,915.20 : x
  2. Step 2: Convert to fraction form
    547,044.12/820,631.70 = 167,915.20/x
  3. Step 3: Cross multiply
    547,044.12x = 820,631.70 × 167,915.20
  4. Step 4: Simplify right side
    547,044.12x = 137,796,536,031.84
  5. Step 5: Solve for x
    x = 137,796,536,031.84/547,044.12
  6. Step 6: Final answer
    x = 251,892.91

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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.