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Finding the Fourth Proportional to 613,704.30, 921,506.85 and 333,768.30

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Solution

The fourth proportional to 613,704.30, 921,506.85 and 333,768.30 is: 501,169.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,704.30 : 921,506.85 = 333,768.30 : x
  2. Step 2: Convert to fraction form
    613,704.30/921,506.85 = 333,768.30/x
  3. Step 3: Cross multiply
    613,704.30x = 921,506.85 × 333,768.30
  4. Step 4: Simplify right side
    613,704.30x = 307,569,774,762.86
  5. Step 5: Solve for x
    x = 307,569,774,762.86/613,704.30
  6. Step 6: Final answer
    x = 501,169.33

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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.