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Finding the Fourth Proportional to 633,784.78, 874,644.30 and 347,302.36

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Solution

The fourth proportional to 633,784.78, 874,644.30 and 347,302.36 is: 479,288.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,784.78 : 874,644.30 = 347,302.36 : x
  2. Step 2: Convert to fraction form
    633,784.78/874,644.30 = 347,302.36/x
  3. Step 3: Cross multiply
    633,784.78x = 874,644.30 × 347,302.36
  4. Step 4: Simplify right side
    633,784.78x = 303,766,029,550.55
  5. Step 5: Solve for x
    x = 303,766,029,550.55/633,784.78
  6. Step 6: Final answer
    x = 479,288.93

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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.