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Finding the Fourth Proportional to 704,984.28, 972,879.54 and 382,694.58

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Solution

The fourth proportional to 704,984.28, 972,879.54 and 382,694.58 is: 528,119.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,984.28 : 972,879.54 = 382,694.58 : x
  2. Step 2: Convert to fraction form
    704,984.28/972,879.54 = 382,694.58/x
  3. Step 3: Cross multiply
    704,984.28x = 972,879.54 × 382,694.58
  4. Step 4: Simplify right side
    704,984.28x = 372,315,726,950.89
  5. Step 5: Solve for x
    x = 372,315,726,950.89/704,984.28
  6. Step 6: Final answer
    x = 528,119.19

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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.