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Finding the Fourth Proportional to 404,603.68, 606,606 and 194,041.12

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Solution

The fourth proportional to 404,603.68, 606,606 and 194,041.12 is: 290,918.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,603.68 : 606,606 = 194,041.12 : x
  2. Step 2: Convert to fraction form
    404,603.68/606,606 = 194,041.12/x
  3. Step 3: Cross multiply
    404,603.68x = 606,606 × 194,041.12
  4. Step 4: Simplify right side
    404,603.68x = 117,706,507,638.72
  5. Step 5: Solve for x
    x = 117,706,507,638.72/404,603.68
  6. Step 6: Final answer
    x = 290,918.04

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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.