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Finding the Fourth Proportional to 613,610.40, 920,467.44 and 193,006.56

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Solution

The fourth proportional to 613,610.40, 920,467.44 and 193,006.56 is: 289,526.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,610.40 : 920,467.44 = 193,006.56 : x
  2. Step 2: Convert to fraction form
    613,610.40/920,467.44 = 193,006.56/x
  3. Step 3: Cross multiply
    613,610.40x = 920,467.44 × 193,006.56
  4. Step 4: Simplify right side
    613,610.40x = 177,656,254,186.41
  5. Step 5: Solve for x
    x = 177,656,254,186.41/613,610.40
  6. Step 6: Final answer
    x = 289,526.15

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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.