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Finding the Fourth Proportional to 417,398.84, 575,371.28 and 255,954.52

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Solution

The fourth proportional to 417,398.84, 575,371.28 and 255,954.52 is: 352,825.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,398.84 : 575,371.28 = 255,954.52 : x
  2. Step 2: Convert to fraction form
    417,398.84/575,371.28 = 255,954.52/x
  3. Step 3: Cross multiply
    417,398.84x = 575,371.28 × 255,954.52
  4. Step 4: Simplify right side
    417,398.84x = 147,268,879,794.19
  5. Step 5: Solve for x
    x = 147,268,879,794.19/417,398.84
  6. Step 6: Final answer
    x = 352,825.32

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.