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Finding the Fourth Proportional to 359,268.80, 539,486.40 and 201,804.80

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Solution

The fourth proportional to 359,268.80, 539,486.40 and 201,804.80 is: 303,034.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,268.80 : 539,486.40 = 201,804.80 : x
  2. Step 2: Convert to fraction form
    359,268.80/539,486.40 = 201,804.80/x
  3. Step 3: Cross multiply
    359,268.80x = 539,486.40 × 201,804.80
  4. Step 4: Simplify right side
    359,268.80x = 108,870,945,054.72
  5. Step 5: Solve for x
    x = 108,870,945,054.72/359,268.80
  6. Step 6: Final answer
    x = 303,034.79

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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.