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Finding the Fourth Proportional to 353,782.40, 487,389.36 and 246,167.36

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Solution

The fourth proportional to 353,782.40, 487,389.36 and 246,167.36 is: 339,133.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,782.40 : 487,389.36 = 246,167.36 : x
  2. Step 2: Convert to fraction form
    353,782.40/487,389.36 = 246,167.36/x
  3. Step 3: Cross multiply
    353,782.40x = 487,389.36 × 246,167.36
  4. Step 4: Simplify right side
    353,782.40x = 119,979,352,043.29
  5. Step 5: Solve for x
    x = 119,979,352,043.29/353,782.40
  6. Step 6: Final answer
    x = 339,133.18

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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.