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Finding the Fourth Proportional to 719,610.12, 993,100.86 and 397,319.22

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Solution

The fourth proportional to 719,610.12, 993,100.86 and 397,319.22 is: 548,322.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,610.12 : 993,100.86 = 397,319.22 : x
  2. Step 2: Convert to fraction form
    719,610.12/993,100.86 = 397,319.22/x
  3. Step 3: Cross multiply
    719,610.12x = 993,100.86 × 397,319.22
  4. Step 4: Simplify right side
    719,610.12x = 394,578,059,076.53
  5. Step 5: Solve for x
    x = 394,578,059,076.53/719,610.12
  6. Step 6: Final answer
    x = 548,322.00

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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.