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Finding the Fourth Proportional to 417,054.94, 622,530.26 and 358,268.38

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Solution

The fourth proportional to 417,054.94, 622,530.26 and 358,268.38 is: 534,780.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,054.94 : 622,530.26 = 358,268.38 : x
  2. Step 2: Convert to fraction form
    417,054.94/622,530.26 = 358,268.38/x
  3. Step 3: Cross multiply
    417,054.94x = 622,530.26 × 358,268.38
  4. Step 4: Simplify right side
    417,054.94x = 223,032,907,751.18
  5. Step 5: Solve for x
    x = 223,032,907,751.18/417,054.94
  6. Step 6: Final answer
    x = 534,780.64

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.