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Finding the Fourth Proportional to 1,158,928.89, 1,738,871.64 and 625,822.13

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Solution

The fourth proportional to 1,158,928.89, 1,738,871.64 and 625,822.13 is: 938,991.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,158,928.89 : 1,738,871.64 = 625,822.13 : x
  2. Step 2: Convert to fraction form
    1,158,928.89/1,738,871.64 = 625,822.13/x
  3. Step 3: Cross multiply
    1,158,928.89x = 1,738,871.64 × 625,822.13
  4. Step 4: Simplify right side
    1,158,928.89x = 1,088,224,344,847.03
  5. Step 5: Solve for x
    x = 1,088,224,344,847.03/1,158,928.89
  6. Step 6: Final answer
    x = 938,991.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.