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Finding the Fourth Proportional to 613,111.23, 919,729.58 and 234,350.78

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Solution

The fourth proportional to 613,111.23, 919,729.58 and 234,350.78 is: 351,550.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,111.23 : 919,729.58 = 234,350.78 : x
  2. Step 2: Convert to fraction form
    613,111.23/919,729.58 = 234,350.78/x
  3. Step 3: Cross multiply
    613,111.23x = 919,729.58 × 234,350.78
  4. Step 4: Simplify right side
    613,111.23x = 215,539,338,691.67
  5. Step 5: Solve for x
    x = 215,539,338,691.67/613,111.23
  6. Step 6: Final answer
    x = 351,550.14

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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.