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Finding the Fourth Proportional to 526,798.82, 726,982.34 and 285,081.36

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Solution

The fourth proportional to 526,798.82, 726,982.34 and 285,081.36 is: 393,412.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,798.82 : 726,982.34 = 285,081.36 : x
  2. Step 2: Convert to fraction form
    526,798.82/726,982.34 = 285,081.36/x
  3. Step 3: Cross multiply
    526,798.82x = 726,982.34 × 285,081.36
  4. Step 4: Simplify right side
    526,798.82x = 207,249,114,183.18
  5. Step 5: Solve for x
    x = 207,249,114,183.18/526,798.82
  6. Step 6: Final answer
    x = 393,412.26

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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.