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Finding the Fourth Proportional to 633,919.77, 874,804.32 and 347,439.24

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Solution

The fourth proportional to 633,919.77, 874,804.32 and 347,439.24 is: 479,463.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,919.77 : 874,804.32 = 347,439.24 : x
  2. Step 2: Convert to fraction form
    633,919.77/874,804.32 = 347,439.24/x
  3. Step 3: Cross multiply
    633,919.77x = 874,804.32 × 347,439.24
  4. Step 4: Simplify right side
    633,919.77x = 303,941,348,089.52
  5. Step 5: Solve for x
    x = 303,941,348,089.52/633,919.77
  6. Step 6: Final answer
    x = 479,463.43

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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.