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Finding the Fourth Proportional to 633,783.78, 874,642.92 and 347,301.36

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Solution

The fourth proportional to 633,783.78, 874,642.92 and 347,301.36 is: 479,287.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,783.78 : 874,642.92 = 347,301.36 : x
  2. Step 2: Convert to fraction form
    633,783.78/874,642.92 = 347,301.36/x
  3. Step 3: Cross multiply
    633,783.78x = 874,642.92 × 347,301.36
  4. Step 4: Simplify right side
    633,783.78x = 303,764,675,630.37
  5. Step 5: Solve for x
    x = 303,764,675,630.37/633,783.78
  6. Step 6: Final answer
    x = 479,287.55

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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.