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Finding the Fourth Proportional to 359,653.15, 496,016.62 and 216,386.43

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Solution

The fourth proportional to 359,653.15, 496,016.62 and 216,386.43 is: 298,429.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,653.15 : 496,016.62 = 216,386.43 : x
  2. Step 2: Convert to fraction form
    359,653.15/496,016.62 = 216,386.43/x
  3. Step 3: Cross multiply
    359,653.15x = 496,016.62 × 216,386.43
  4. Step 4: Simplify right side
    359,653.15x = 107,331,265,622.47
  5. Step 5: Solve for x
    x = 107,331,265,622.47/359,653.15
  6. Step 6: Final answer
    x = 298,429.93

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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.