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Finding the Fourth Proportional to 606,839.60, 908,509.80 and 370,643.60

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Solution

The fourth proportional to 606,839.60, 908,509.80 and 370,643.60 is: 554,896.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,839.60 : 908,509.80 = 370,643.60 : x
  2. Step 2: Convert to fraction form
    606,839.60/908,509.80 = 370,643.60/x
  3. Step 3: Cross multiply
    606,839.60x = 908,509.80 × 370,643.60
  4. Step 4: Simplify right side
    606,839.60x = 336,733,342,907.28
  5. Step 5: Solve for x
    x = 336,733,342,907.28/606,839.60
  6. Step 6: Final answer
    x = 554,896.78

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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.