Home / 1,126,011.06-1,554,007.04-642,649.43

Finding the Fourth Proportional to 1,126,011.06, 1,554,007.04 and 642,649.43

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Solution

The fourth proportional to 1,126,011.06, 1,554,007.04 and 642,649.43 is: 886,920.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,126,011.06 : 1,554,007.04 = 642,649.43 : x
  2. Step 2: Convert to fraction form
    1,126,011.06/1,554,007.04 = 642,649.43/x
  3. Step 3: Cross multiply
    1,126,011.06x = 1,554,007.04 × 642,649.43
  4. Step 4: Simplify right side
    1,126,011.06x = 998,681,738,471.99
  5. Step 5: Solve for x
    x = 998,681,738,471.99/1,126,011.06
  6. Step 6: Final answer
    x = 886,920.01

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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.