Home / 781,785.63-1,171,151.19-538,583.76

Finding the Fourth Proportional to 781,785.63, 1,171,151.19 and 538,583.76

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Solution

The fourth proportional to 781,785.63, 1,171,151.19 and 538,583.76 is: 806,823.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,785.63 : 1,171,151.19 = 538,583.76 : x
  2. Step 2: Convert to fraction form
    781,785.63/1,171,151.19 = 538,583.76/x
  3. Step 3: Cross multiply
    781,785.63x = 1,171,151.19 × 538,583.76
  4. Step 4: Simplify right side
    781,785.63x = 630,763,011,438.68
  5. Step 5: Solve for x
    x = 630,763,011,438.68/781,785.63
  6. Step 6: Final answer
    x = 806,823.49

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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.