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Finding the Fourth Proportional to 528,092.40, 792,138.60 and 243,782.40

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Solution

The fourth proportional to 528,092.40, 792,138.60 and 243,782.40 is: 365,673.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,092.40 : 792,138.60 = 243,782.40 : x
  2. Step 2: Convert to fraction form
    528,092.40/792,138.60 = 243,782.40/x
  3. Step 3: Cross multiply
    528,092.40x = 792,138.60 × 243,782.40
  4. Step 4: Simplify right side
    528,092.40x = 193,109,449,040.64
  5. Step 5: Solve for x
    x = 193,109,449,040.64/528,092.40
  6. Step 6: Final answer
    x = 365,673.60

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Similar ratio
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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.