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Finding the Fourth Proportional to 331,616.36, 457,305.46 and 210,547.46

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Solution

The fourth proportional to 331,616.36, 457,305.46 and 210,547.46 is: 290,349.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,616.36 : 457,305.46 = 210,547.46 : x
  2. Step 2: Convert to fraction form
    331,616.36/457,305.46 = 210,547.46/x
  3. Step 3: Cross multiply
    331,616.36x = 457,305.46 × 210,547.46
  4. Step 4: Simplify right side
    331,616.36x = 96,284,502,276.01
  5. Step 5: Solve for x
    x = 96,284,502,276.01/331,616.36
  6. Step 6: Final answer
    x = 290,349.07

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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.