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Finding the Fourth Proportional to 528,455.47, 792,765.81 and 173,388.73

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Solution

The fourth proportional to 528,455.47, 792,765.81 and 173,388.73 is: 260,110.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,455.47 : 792,765.81 = 173,388.73 : x
  2. Step 2: Convert to fraction form
    528,455.47/792,765.81 = 173,388.73/x
  3. Step 3: Cross multiply
    528,455.47x = 792,765.81 × 173,388.73
  4. Step 4: Simplify right side
    528,455.47x = 137,456,656,983.32
  5. Step 5: Solve for x
    x = 137,456,656,983.32/528,455.47
  6. Step 6: Final answer
    x = 260,110.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.