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Finding the Fourth Proportional to 633,665.56, 874,458.30 and 347,196.52

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Solution

The fourth proportional to 633,665.56, 874,458.30 and 347,196.52 is: 479,131.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,665.56 : 874,458.30 = 347,196.52 : x
  2. Step 2: Convert to fraction form
    633,665.56/874,458.30 = 347,196.52/x
  3. Step 3: Cross multiply
    633,665.56x = 874,458.30 × 347,196.52
  4. Step 4: Simplify right side
    633,665.56x = 303,608,878,645.12
  5. Step 5: Solve for x
    x = 303,608,878,645.12/633,665.56
  6. Step 6: Final answer
    x = 479,131.10

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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.