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Finding the Fourth Proportional to 1,260,305.93, 1,738,923.19 and 716,399.03

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Solution

The fourth proportional to 1,260,305.93, 1,738,923.19 and 716,399.03 is: 988,460.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,260,305.93 : 1,738,923.19 = 716,399.03 : x
  2. Step 2: Convert to fraction form
    1,260,305.93/1,738,923.19 = 716,399.03/x
  3. Step 3: Cross multiply
    1,260,305.93x = 1,738,923.19 × 716,399.03
  4. Step 4: Simplify right side
    1,260,305.93x = 1,245,762,889,116.82
  5. Step 5: Solve for x
    x = 1,245,762,889,116.82/1,260,305.93
  6. Step 6: Final answer
    x = 988,460.70

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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.