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Finding the Fourth Proportional to 691,467, 954,224.46 and 373,515

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Solution

The fourth proportional to 691,467, 954,224.46 and 373,515 is: 515,450.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,467 : 954,224.46 = 373,515 : x
  2. Step 2: Convert to fraction form
    691,467/954,224.46 = 373,515/x
  3. Step 3: Cross multiply
    691,467x = 954,224.46 × 373,515
  4. Step 4: Simplify right side
    691,467x = 356,417,149,176.90
  5. Step 5: Solve for x
    x = 356,417,149,176.90/691,467
  6. Step 6: Final answer
    x = 515,450.70

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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.