Home / 1,227,885.40-1,842,029.70-386,234.20

Finding the Fourth Proportional to 1,227,885.40, 1,842,029.70 and 386,234.20

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Solution

The fourth proportional to 1,227,885.40, 1,842,029.70 and 386,234.20 is: 579,414.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,227,885.40 : 1,842,029.70 = 386,234.20 : x
  2. Step 2: Convert to fraction form
    1,227,885.40/1,842,029.70 = 386,234.20/x
  3. Step 3: Cross multiply
    1,227,885.40x = 1,842,029.70 × 386,234.20
  4. Step 4: Simplify right side
    1,227,885.40x = 711,454,867,555.74
  5. Step 5: Solve for x
    x = 711,454,867,555.74/1,227,885.40
  6. Step 6: Final answer
    x = 579,414.71

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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.