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Finding the Fourth Proportional to 576,218.23, 795,160.31 and 318,089.63

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Solution

The fourth proportional to 576,218.23, 795,160.31 and 318,089.63 is: 438,952.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,218.23 : 795,160.31 = 318,089.63 : x
  2. Step 2: Convert to fraction form
    576,218.23/795,160.31 = 318,089.63/x
  3. Step 3: Cross multiply
    576,218.23x = 795,160.31 × 318,089.63
  4. Step 4: Simplify right side
    576,218.23x = 252,932,249,643.35
  5. Step 5: Solve for x
    x = 252,932,249,643.35/576,218.23
  6. Step 6: Final answer
    x = 438,952.18

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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.