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Finding the Fourth Proportional to 1,229,799.93, 1,845,260.40 and 631,181.47

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Solution

The fourth proportional to 1,229,799.93, 1,845,260.40 and 631,181.47 is: 947,059.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,229,799.93 : 1,845,260.40 = 631,181.47 : x
  2. Step 2: Convert to fraction form
    1,229,799.93/1,845,260.40 = 631,181.47/x
  3. Step 3: Cross multiply
    1,229,799.93x = 1,845,260.40 × 631,181.47
  4. Step 4: Simplify right side
    1,229,799.93x = 1,164,694,171,804.79
  5. Step 5: Solve for x
    x = 1,164,694,171,804.79/1,229,799.93
  6. Step 6: Final answer
    x = 947,059.88

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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.