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Finding the Fourth Proportional to 633,541.12, 874,287.80 and 347,054.96

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Solution

The fourth proportional to 633,541.12, 874,287.80 and 347,054.96 is: 478,936.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,541.12 : 874,287.80 = 347,054.96 : x
  2. Step 2: Convert to fraction form
    633,541.12/874,287.80 = 347,054.96/x
  3. Step 3: Cross multiply
    633,541.12x = 874,287.80 × 347,054.96
  4. Step 4: Simplify right side
    633,541.12x = 303,425,917,457.49
  5. Step 5: Solve for x
    x = 303,425,917,457.49/633,541.12
  6. Step 6: Final answer
    x = 478,936.42

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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.