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Finding the Fourth Proportional to 613,610.90, 920,468.19 and 193,007.06

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Solution

The fourth proportional to 613,610.90, 920,468.19 and 193,007.06 is: 289,526.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,610.90 : 920,468.19 = 193,007.06 : x
  2. Step 2: Convert to fraction form
    613,610.90/920,468.19 = 193,007.06/x
  3. Step 3: Cross multiply
    613,610.90x = 920,468.19 × 193,007.06
  4. Step 4: Simplify right side
    613,610.90x = 177,656,859,175.42
  5. Step 5: Solve for x
    x = 177,656,859,175.42/613,610.90
  6. Step 6: Final answer
    x = 289,526.90

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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.