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Finding the Fourth Proportional to 373,464.69, 515,424.83 and 212,343.87

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Solution

The fourth proportional to 373,464.69, 515,424.83 and 212,343.87 is: 293,059.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,464.69 : 515,424.83 = 212,343.87 : x
  2. Step 2: Convert to fraction form
    373,464.69/515,424.83 = 212,343.87/x
  3. Step 3: Cross multiply
    373,464.69x = 515,424.83 × 212,343.87
  4. Step 4: Simplify right side
    373,464.69x = 109,447,303,096.29
  5. Step 5: Solve for x
    x = 109,447,303,096.29/373,464.69
  6. Step 6: Final answer
    x = 293,059.31

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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.