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Finding the Fourth Proportional to 719,606.66, 993,072.68 and 397,337.15

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Solution

The fourth proportional to 719,606.66, 993,072.68 and 397,337.15 is: 548,333.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,606.66 : 993,072.68 = 397,337.15 : x
  2. Step 2: Convert to fraction form
    719,606.66/993,072.68 = 397,337.15/x
  3. Step 3: Cross multiply
    719,606.66x = 993,072.68 × 397,337.15
  4. Step 4: Simplify right side
    719,606.66x = 394,584,661,462.01
  5. Step 5: Solve for x
    x = 394,584,661,462.01/719,606.66
  6. Step 6: Final answer
    x = 548,333.81

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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.