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Finding the Fourth Proportional to 585,394.44, 807,979.30 and 381,089.51

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Solution

The fourth proportional to 585,394.44, 807,979.30 and 381,089.51 is: 525,991.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,394.44 : 807,979.30 = 381,089.51 : x
  2. Step 2: Convert to fraction form
    585,394.44/807,979.30 = 381,089.51/x
  3. Step 3: Cross multiply
    585,394.44x = 807,979.30 × 381,089.51
  4. Step 4: Simplify right side
    585,394.44x = 307,912,435,527.14
  5. Step 5: Solve for x
    x = 307,912,435,527.14/585,394.44
  6. Step 6: Final answer
    x = 525,991.39

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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.