Home / 418,136.18-577,028.61-227,149.72

Finding the Fourth Proportional to 418,136.18, 577,028.61 and 227,149.72

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Solution

The fourth proportional to 418,136.18, 577,028.61 and 227,149.72 is: 313,466.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,136.18 : 577,028.61 = 227,149.72 : x
  2. Step 2: Convert to fraction form
    418,136.18/577,028.61 = 227,149.72/x
  3. Step 3: Cross multiply
    418,136.18x = 577,028.61 × 227,149.72
  4. Step 4: Simplify right side
    418,136.18x = 131,071,885,750.92
  5. Step 5: Solve for x
    x = 131,071,885,750.92/418,136.18
  6. Step 6: Final answer
    x = 313,466.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.