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Finding the Fourth Proportional to 1,294,509.12, 1,941,765.06 and 699,255.12

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Solution

The fourth proportional to 1,294,509.12, 1,941,765.06 and 699,255.12 is: 1,048,883.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,294,509.12 : 1,941,765.06 = 699,255.12 : x
  2. Step 2: Convert to fraction form
    1,294,509.12/1,941,765.06 = 699,255.12/x
  3. Step 3: Cross multiply
    1,294,509.12x = 1,941,765.06 × 699,255.12
  4. Step 4: Simplify right side
    1,294,509.12x = 1,357,789,160,042.11
  5. Step 5: Solve for x
    x = 1,357,789,160,042.11/1,294,509.12
  6. Step 6: Final answer
    x = 1,048,883.43

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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.