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Finding the Fourth Proportional to 664,185.40, 996,569.69 and 348,568.49

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Solution

The fourth proportional to 664,185.40, 996,569.69 and 348,568.49 is: 523,005.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,185.40 : 996,569.69 = 348,568.49 : x
  2. Step 2: Convert to fraction form
    664,185.40/996,569.69 = 348,568.49/x
  3. Step 3: Cross multiply
    664,185.40x = 996,569.69 × 348,568.49
  4. Step 4: Simplify right side
    664,185.40x = 347,372,792,023.07
  5. Step 5: Solve for x
    x = 347,372,792,023.07/664,185.40
  6. Step 6: Final answer
    x = 523,005.76

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1.5x scale

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.