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Finding the Fourth Proportional to 295,978.40, 443,603.10 and 201,208.40

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Solution

The fourth proportional to 295,978.40, 443,603.10 and 201,208.40 is: 301,564.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,978.40 : 443,603.10 = 201,208.40 : x
  2. Step 2: Convert to fraction form
    295,978.40/443,603.10 = 201,208.40/x
  3. Step 3: Cross multiply
    295,978.40x = 443,603.10 × 201,208.40
  4. Step 4: Simplify right side
    295,978.40x = 89,256,669,986.04
  5. Step 5: Solve for x
    x = 89,256,669,986.04/295,978.40
  6. Step 6: Final answer
    x = 301,564.81

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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.