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Finding the Fourth Proportional to 633,861.56, 874,709.16 and 347,376.44

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Solution

The fourth proportional to 633,861.56, 874,709.16 and 347,376.44 is: 479,368.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,861.56 : 874,709.16 = 347,376.44 : x
  2. Step 2: Convert to fraction form
    633,861.56/874,709.16 = 347,376.44/x
  3. Step 3: Cross multiply
    633,861.56x = 874,709.16 × 347,376.44
  4. Step 4: Simplify right side
    633,861.56x = 303,853,354,036.19
  5. Step 5: Solve for x
    x = 303,853,354,036.19/633,861.56
  6. Step 6: Final answer
    x = 479,368.64

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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.