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Finding the Fourth Proportional to 526,806.73, 726,995.07 and 285,089.23

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Solution

The fourth proportional to 526,806.73, 726,995.07 and 285,089.23 is: 393,424.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,806.73 : 726,995.07 = 285,089.23 : x
  2. Step 2: Convert to fraction form
    526,806.73/726,995.07 = 285,089.23/x
  3. Step 3: Cross multiply
    526,806.73x = 726,995.07 × 285,089.23
  4. Step 4: Simplify right side
    526,806.73x = 207,258,462,902.61
  5. Step 5: Solve for x
    x = 207,258,462,902.61/526,806.73
  6. Step 6: Final answer
    x = 393,424.10

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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.