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Finding the Fourth Proportional to 1,260,751.30, 1,739,828.71 and 716,887.22

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Solution

The fourth proportional to 1,260,751.30, 1,739,828.71 and 716,887.22 is: 989,299.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,260,751.30 : 1,739,828.71 = 716,887.22 : x
  2. Step 2: Convert to fraction form
    1,260,751.30/1,739,828.71 = 716,887.22/x
  3. Step 3: Cross multiply
    1,260,751.30x = 1,739,828.71 × 716,887.22
  4. Step 4: Simplify right side
    1,260,751.30x = 1,247,260,967,188.09
  5. Step 5: Solve for x
    x = 1,247,260,967,188.09/1,260,751.30
  6. Step 6: Final answer
    x = 989,299.77

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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.