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Finding the Fourth Proportional to 668,662.37, 922,754.07 and 382,188.60

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Solution

The fourth proportional to 668,662.37, 922,754.07 and 382,188.60 is: 527,420.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,662.37 : 922,754.07 = 382,188.60 : x
  2. Step 2: Convert to fraction form
    668,662.37/922,754.07 = 382,188.60/x
  3. Step 3: Cross multiply
    668,662.37x = 922,754.07 × 382,188.60
  4. Step 4: Simplify right side
    668,662.37x = 352,666,086,157.60
  5. Step 5: Solve for x
    x = 352,666,086,157.60/668,662.37
  6. Step 6: Final answer
    x = 527,420.27

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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.