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Finding the Fourth Proportional to 704,739.14, 972,540.62 and 382,449.22

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Solution

The fourth proportional to 704,739.14, 972,540.62 and 382,449.22 is: 527,780.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,739.14 : 972,540.62 = 382,449.22 : x
  2. Step 2: Convert to fraction form
    704,739.14/972,540.62 = 382,449.22/x
  3. Step 3: Cross multiply
    704,739.14x = 972,540.62 × 382,449.22
  4. Step 4: Simplify right side
    704,739.14x = 371,947,401,537.32
  5. Step 5: Solve for x
    x = 371,947,401,537.32/704,739.14
  6. Step 6: Final answer
    x = 527,780.25

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1.5x scale

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.