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Finding the Fourth Proportional to 557,684.05, 769,608.60 and 303,035.24

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Solution

The fourth proportional to 557,684.05, 769,608.60 and 303,035.24 is: 418,191.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,684.05 : 769,608.60 = 303,035.24 : x
  2. Step 2: Convert to fraction form
    557,684.05/769,608.60 = 303,035.24/x
  3. Step 3: Cross multiply
    557,684.05x = 769,608.60 × 303,035.24
  4. Step 4: Simplify right side
    557,684.05x = 233,218,526,478.63
  5. Step 5: Solve for x
    x = 233,218,526,478.63/557,684.05
  6. Step 6: Final answer
    x = 418,191.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.