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Finding the Fourth Proportional to 656,329.11, 905,728.79 and 365,937.23

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Solution

The fourth proportional to 656,329.11, 905,728.79 and 365,937.23 is: 504,990.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,329.11 : 905,728.79 = 365,937.23 : x
  2. Step 2: Convert to fraction form
    656,329.11/905,728.79 = 365,937.23/x
  3. Step 3: Cross multiply
    656,329.11x = 905,728.79 × 365,937.23
  4. Step 4: Simplify right side
    656,329.11x = 331,439,878,185.52
  5. Step 5: Solve for x
    x = 331,439,878,185.52/656,329.11
  6. Step 6: Final answer
    x = 504,990.37

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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.