Home / 418,966.09-628,760.94-205,848.41

Finding the Fourth Proportional to 418,966.09, 628,760.94 and 205,848.41

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Solution

The fourth proportional to 418,966.09, 628,760.94 and 205,848.41 is: 308,925.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,966.09 : 628,760.94 = 205,848.41 : x
  2. Step 2: Convert to fraction form
    418,966.09/628,760.94 = 205,848.41/x
  3. Step 3: Cross multiply
    418,966.09x = 628,760.94 × 205,848.41
  4. Step 4: Simplify right side
    418,966.09x = 129,429,438,211.22
  5. Step 5: Solve for x
    x = 129,429,438,211.22/418,966.09
  6. Step 6: Final answer
    x = 308,925.81

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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.