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Finding the Fourth Proportional to 291,485.14, 402,435.22 and 237,897.98

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Solution

The fourth proportional to 291,485.14, 402,435.22 and 237,897.98 is: 328,450.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,485.14 : 402,435.22 = 237,897.98 : x
  2. Step 2: Convert to fraction form
    291,485.14/402,435.22 = 237,897.98/x
  3. Step 3: Cross multiply
    291,485.14x = 402,435.22 × 237,897.98
  4. Step 4: Simplify right side
    291,485.14x = 95,738,525,918.86
  5. Step 5: Solve for x
    x = 95,738,525,918.86/291,485.14
  6. Step 6: Final answer
    x = 328,450.79

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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.