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Finding the Fourth Proportional to 633,634.48, 874,415.60 and 347,165.44

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Solution

The fourth proportional to 633,634.48, 874,415.60 and 347,165.44 is: 479,088.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,634.48 : 874,415.60 = 347,165.44 : x
  2. Step 2: Convert to fraction form
    633,634.48/874,415.60 = 347,165.44/x
  3. Step 3: Cross multiply
    633,634.48x = 874,415.60 × 347,165.44
  4. Step 4: Simplify right side
    633,634.48x = 303,566,876,516.86
  5. Step 5: Solve for x
    x = 303,566,876,516.86/633,634.48
  6. Step 6: Final answer
    x = 479,088.32

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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.