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Finding the Fourth Proportional to 696,935.45, 962,108.87 and 467,408.78

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Solution

The fourth proportional to 696,935.45, 962,108.87 and 467,408.78 is: 645,250.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    696,935.45 : 962,108.87 = 467,408.78 : x
  2. Step 2: Convert to fraction form
    696,935.45/962,108.87 = 467,408.78/x
  3. Step 3: Cross multiply
    696,935.45x = 962,108.87 × 467,408.78
  4. Step 4: Simplify right side
    696,935.45x = 449,698,130,816.84
  5. Step 5: Solve for x
    x = 449,698,130,816.84/696,935.45
  6. Step 6: Final answer
    x = 645,250.76

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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.