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Finding the Fourth Proportional to 1,197,965.23, 1,654,940.86 and 1,036,540.01

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Solution

The fourth proportional to 1,197,965.23, 1,654,940.86 and 1,036,540.01 is: 1,431,938.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,197,965.23 : 1,654,940.86 = 1,036,540.01 : x
  2. Step 2: Convert to fraction form
    1,197,965.23/1,654,940.86 = 1,036,540.01/x
  3. Step 3: Cross multiply
    1,197,965.23x = 1,654,940.86 × 1,036,540.01
  4. Step 4: Simplify right side
    1,197,965.23x = 1,715,412,417,119.81
  5. Step 5: Solve for x
    x = 1,715,412,417,119.81/1,197,965.23
  6. Step 6: Final answer
    x = 1,431,938.41

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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.