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Finding the Fourth Proportional to 528,040.40, 792,060.60 and 291,844.40

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Solution

The fourth proportional to 528,040.40, 792,060.60 and 291,844.40 is: 437,766.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,040.40 : 792,060.60 = 291,844.40 : x
  2. Step 2: Convert to fraction form
    528,040.40/792,060.60 = 291,844.40/x
  3. Step 3: Cross multiply
    528,040.40x = 792,060.60 × 291,844.40
  4. Step 4: Simplify right side
    528,040.40x = 231,158,450,570.64
  5. Step 5: Solve for x
    x = 231,158,450,570.64/528,040.40
  6. Step 6: Final answer
    x = 437,766.60

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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.