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Finding the Fourth Proportional to 659,873.04, 910,642.44 and 358,067.28

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Solution

The fourth proportional to 659,873.04, 910,642.44 and 358,067.28 is: 494,142.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,873.04 : 910,642.44 = 358,067.28 : x
  2. Step 2: Convert to fraction form
    659,873.04/910,642.44 = 358,067.28/x
  3. Step 3: Cross multiply
    659,873.04x = 910,642.44 × 358,067.28
  4. Step 4: Simplify right side
    659,873.04x = 326,071,261,543.36
  5. Step 5: Solve for x
    x = 326,071,261,543.36/659,873.04
  6. Step 6: Final answer
    x = 494,142.42

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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.