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Finding the Fourth Proportional to 633,549.90, 874,296.27 and 347,087.82

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Solution

The fourth proportional to 633,549.90, 874,296.27 and 347,087.82 is: 478,979.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,549.90 : 874,296.27 = 347,087.82 : x
  2. Step 2: Convert to fraction form
    633,549.90/874,296.27 = 347,087.82/x
  3. Step 3: Cross multiply
    633,549.90x = 874,296.27 × 347,087.82
  4. Step 4: Simplify right side
    633,549.90x = 303,457,586,388.43
  5. Step 5: Solve for x
    x = 303,457,586,388.43/633,549.90
  6. Step 6: Final answer
    x = 478,979.77

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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.