Home / 491,018.28-677,557.33-276,153.76

Finding the Fourth Proportional to 491,018.28, 677,557.33 and 276,153.76

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Solution

The fourth proportional to 491,018.28, 677,557.33 and 276,153.76 is: 381,065.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,018.28 : 677,557.33 = 276,153.76 : x
  2. Step 2: Convert to fraction form
    491,018.28/677,557.33 = 276,153.76/x
  3. Step 3: Cross multiply
    491,018.28x = 677,557.33 × 276,153.76
  4. Step 4: Simplify right side
    491,018.28x = 187,110,004,295.06
  5. Step 5: Solve for x
    x = 187,110,004,295.06/491,018.28
  6. Step 6: Final answer
    x = 381,065.25

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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.