Home / 1,278,685.28-1,764,582.06-705,721.35

Finding the Fourth Proportional to 1,278,685.28, 1,764,582.06 and 705,721.35

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Solution

The fourth proportional to 1,278,685.28, 1,764,582.06 and 705,721.35 is: 973,893.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,278,685.28 : 1,764,582.06 = 705,721.35 : x
  2. Step 2: Convert to fraction form
    1,278,685.28/1,764,582.06 = 705,721.35/x
  3. Step 3: Cross multiply
    1,278,685.28x = 1,764,582.06 × 705,721.35
  4. Step 4: Simplify right side
    1,278,685.28x = 1,245,303,233,568.98
  5. Step 5: Solve for x
    x = 1,245,303,233,568.98/1,278,685.28
  6. Step 6: Final answer
    x = 973,893.46

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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.