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Finding the Fourth Proportional to 613,776.80, 919,524.72 and 333,529.76

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Solution

The fourth proportional to 613,776.80, 919,524.72 and 333,529.76 is: 499,674.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,776.80 : 919,524.72 = 333,529.76 : x
  2. Step 2: Convert to fraction form
    613,776.80/919,524.72 = 333,529.76/x
  3. Step 3: Cross multiply
    613,776.80x = 919,524.72 × 333,529.76
  4. Step 4: Simplify right side
    613,776.80x = 306,688,859,175.67
  5. Step 5: Solve for x
    x = 306,688,859,175.67/613,776.80
  6. Step 6: Final answer
    x = 499,674.90

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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.