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Finding the Fourth Proportional to 651,661.24, 978,019.98 and 336,208.36

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Solution

The fourth proportional to 651,661.24, 978,019.98 and 336,208.36 is: 504,585.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,661.24 : 978,019.98 = 336,208.36 : x
  2. Step 2: Convert to fraction form
    651,661.24/978,019.98 = 336,208.36/x
  3. Step 3: Cross multiply
    651,661.24x = 978,019.98 × 336,208.36
  4. Step 4: Simplify right side
    651,661.24x = 328,818,493,523.03
  5. Step 5: Solve for x
    x = 328,818,493,523.03/651,661.24
  6. Step 6: Final answer
    x = 504,585.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.