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Finding the Fourth Proportional to 1,233,661.22, 1,845,374.24 and 1,158,078.50

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Solution

The fourth proportional to 1,233,661.22, 1,845,374.24 and 1,158,078.50 is: 1,732,313.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,233,661.22 : 1,845,374.24 = 1,158,078.50 : x
  2. Step 2: Convert to fraction form
    1,233,661.22/1,845,374.24 = 1,158,078.50/x
  3. Step 3: Cross multiply
    1,233,661.22x = 1,845,374.24 × 1,158,078.50
  4. Step 4: Simplify right side
    1,233,661.22x = 2,137,088,231,797.84
  5. Step 5: Solve for x
    x = 2,137,088,231,797.84/1,233,661.22
  6. Step 6: Final answer
    x = 1,732,313.70

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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.