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Finding the Fourth Proportional to 651,894.13, 978,110.24 and 352,021.57

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Solution

The fourth proportional to 651,894.13, 978,110.24 and 352,021.57 is: 528,177.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,894.13 : 978,110.24 = 352,021.57 : x
  2. Step 2: Convert to fraction form
    651,894.13/978,110.24 = 352,021.57/x
  3. Step 3: Cross multiply
    651,894.13x = 978,110.24 × 352,021.57
  4. Step 4: Simplify right side
    651,894.13x = 344,315,900,863.43
  5. Step 5: Solve for x
    x = 344,315,900,863.43/651,894.13
  6. Step 6: Final answer
    x = 528,177.64

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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.