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Finding the Fourth Proportional to 664,289.16, 995,840.34 and 259,387.16

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Solution

The fourth proportional to 664,289.16, 995,840.34 and 259,387.16 is: 388,849.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,289.16 : 995,840.34 = 259,387.16 : x
  2. Step 2: Convert to fraction form
    664,289.16/995,840.34 = 259,387.16/x
  3. Step 3: Cross multiply
    664,289.16x = 995,840.34 × 259,387.16
  4. Step 4: Simplify right side
    664,289.16x = 258,308,201,653.45
  5. Step 5: Solve for x
    x = 258,308,201,653.45/664,289.16
  6. Step 6: Final answer
    x = 388,849.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.