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Finding the Fourth Proportional to 1,260,677.83, 1,739,817.62 and 716,864.22

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Solution

The fourth proportional to 1,260,677.83, 1,739,817.62 and 716,864.22 is: 989,319.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,260,677.83 : 1,739,817.62 = 716,864.22 : x
  2. Step 2: Convert to fraction form
    1,260,677.83/1,739,817.62 = 716,864.22/x
  3. Step 3: Cross multiply
    1,260,677.83x = 1,739,817.62 × 716,864.22
  4. Step 4: Simplify right side
    1,260,677.83x = 1,247,213,001,103.56
  5. Step 5: Solve for x
    x = 1,247,213,001,103.56/1,260,677.83
  6. Step 6: Final answer
    x = 989,319.37

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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.