Home / 813,742.52-1,123,030.86-451,202.36

Finding the Fourth Proportional to 813,742.52, 1,123,030.86 and 451,202.36

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Solution

The fourth proportional to 813,742.52, 1,123,030.86 and 451,202.36 is: 622,695.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,742.52 : 1,123,030.86 = 451,202.36 : x
  2. Step 2: Convert to fraction form
    813,742.52/1,123,030.86 = 451,202.36/x
  3. Step 3: Cross multiply
    813,742.52x = 1,123,030.86 × 451,202.36
  4. Step 4: Simplify right side
    813,742.52x = 506,714,174,384.83
  5. Step 5: Solve for x
    x = 506,714,174,384.83/813,742.52
  6. Step 6: Final answer
    x = 622,695.95

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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.