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Finding the Fourth Proportional to 681,840.93, 939,962.44 and 536,393.92

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Solution

The fourth proportional to 681,840.93, 939,962.44 and 536,393.92 is: 739,454.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,840.93 : 939,962.44 = 536,393.92 : x
  2. Step 2: Convert to fraction form
    681,840.93/939,962.44 = 536,393.92/x
  3. Step 3: Cross multiply
    681,840.93x = 939,962.44 × 536,393.92
  4. Step 4: Simplify right side
    681,840.93x = 504,190,137,844.37
  5. Step 5: Solve for x
    x = 504,190,137,844.37/681,840.93
  6. Step 6: Final answer
    x = 739,454.20

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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.