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Finding the Fourth Proportional to 624,644.70, 936,736.65 and 203,934.30

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Solution

The fourth proportional to 624,644.70, 936,736.65 and 203,934.30 is: 305,826.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,644.70 : 936,736.65 = 203,934.30 : x
  2. Step 2: Convert to fraction form
    624,644.70/936,736.65 = 203,934.30/x
  3. Step 3: Cross multiply
    624,644.70x = 936,736.65 × 203,934.30
  4. Step 4: Simplify right side
    624,644.70x = 191,032,733,002.10
  5. Step 5: Solve for x
    x = 191,032,733,002.10/624,644.70
  6. Step 6: Final answer
    x = 305,826.23

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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.