Home / 1,279,356.19-1,765,465.20-706,384.06

Finding the Fourth Proportional to 1,279,356.19, 1,765,465.20 and 706,384.06

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Solution

The fourth proportional to 1,279,356.19, 1,765,465.20 and 706,384.06 is: 974,784.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,279,356.19 : 1,765,465.20 = 706,384.06 : x
  2. Step 2: Convert to fraction form
    1,279,356.19/1,765,465.20 = 706,384.06/x
  3. Step 3: Cross multiply
    1,279,356.19x = 1,765,465.20 × 706,384.06
  4. Step 4: Simplify right side
    1,279,356.19x = 1,247,096,471,351.05
  5. Step 5: Solve for x
    x = 1,247,096,471,351.05/1,279,356.19
  6. Step 6: Final answer
    x = 974,784.41

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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.