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Finding the Fourth Proportional to 613,118.81, 918,348.99 and 296,912.63

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Solution

The fourth proportional to 613,118.81, 918,348.99 and 296,912.63 is: 444,725.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,118.81 : 918,348.99 = 296,912.63 : x
  2. Step 2: Convert to fraction form
    613,118.81/918,348.99 = 296,912.63/x
  3. Step 3: Cross multiply
    613,118.81x = 918,348.99 × 296,912.63
  4. Step 4: Simplify right side
    613,118.81x = 272,669,409,287.00
  5. Step 5: Solve for x
    x = 272,669,409,287.00/613,118.81
  6. Step 6: Final answer
    x = 444,725.24

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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.