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Finding the Fourth Proportional to 528,086.07, 729,157.91 and 324,416.07

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Solution

The fourth proportional to 528,086.07, 729,157.91 and 324,416.07 is: 447,939.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,086.07 : 729,157.91 = 324,416.07 : x
  2. Step 2: Convert to fraction form
    528,086.07/729,157.91 = 324,416.07/x
  3. Step 3: Cross multiply
    528,086.07x = 729,157.91 × 324,416.07
  4. Step 4: Simplify right side
    528,086.07x = 236,550,541,949.53
  5. Step 5: Solve for x
    x = 236,550,541,949.53/528,086.07
  6. Step 6: Final answer
    x = 447,939.37

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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.