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Finding the Fourth Proportional to 526,809.72, 726,999.23 and 285,092.22

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Solution

The fourth proportional to 526,809.72, 726,999.23 and 285,092.22 is: 393,428.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,809.72 : 726,999.23 = 285,092.22 : x
  2. Step 2: Convert to fraction form
    526,809.72/726,999.23 = 285,092.22/x
  3. Step 3: Cross multiply
    526,809.72x = 726,999.23 × 285,092.22
  4. Step 4: Simplify right side
    526,809.72x = 207,261,822,993.53
  5. Step 5: Solve for x
    x = 207,261,822,993.53/526,809.72
  6. Step 6: Final answer
    x = 393,428.24

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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.