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Finding the Fourth Proportional to 1,294,836.16, 1,786,968.48 and 751,157.68

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Solution

The fourth proportional to 1,294,836.16, 1,786,968.48 and 751,157.68 is: 1,036,652.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,294,836.16 : 1,786,968.48 = 751,157.68 : x
  2. Step 2: Convert to fraction form
    1,294,836.16/1,786,968.48 = 751,157.68/x
  3. Step 3: Cross multiply
    1,294,836.16x = 1,786,968.48 × 751,157.68
  4. Step 4: Simplify right side
    1,294,836.16x = 1,342,295,097,669.93
  5. Step 5: Solve for x
    x = 1,342,295,097,669.93/1,294,836.16
  6. Step 6: Final answer
    x = 1,036,652.47

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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.