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Finding the Fourth Proportional to 371,559.96, 512,758.62 and 210,410.64

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Solution

The fourth proportional to 371,559.96, 512,758.62 and 210,410.64 is: 290,370.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,559.96 : 512,758.62 = 210,410.64 : x
  2. Step 2: Convert to fraction form
    371,559.96/512,758.62 = 210,410.64/x
  3. Step 3: Cross multiply
    371,559.96x = 512,758.62 × 210,410.64
  4. Step 4: Simplify right side
    371,559.96x = 107,889,869,399.72
  5. Step 5: Solve for x
    x = 107,889,869,399.72/371,559.96
  6. Step 6: Final answer
    x = 290,370.01

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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.