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Finding the Fourth Proportional to 622,145.80, 933,333.90 and 201,435.40

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Solution

The fourth proportional to 622,145.80, 933,333.90 and 201,435.40 is: 302,190.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,145.80 : 933,333.90 = 201,435.40 : x
  2. Step 2: Convert to fraction form
    622,145.80/933,333.90 = 201,435.40/x
  3. Step 3: Cross multiply
    622,145.80x = 933,333.90 × 201,435.40
  4. Step 4: Simplify right side
    622,145.80x = 188,006,487,480.06
  5. Step 5: Solve for x
    x = 188,006,487,480.06/622,145.80
  6. Step 6: Final answer
    x = 302,190.40

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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.