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Finding the Fourth Proportional to 350,476.91, 483,646.60 and 221,484.32

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Solution

The fourth proportional to 350,476.91, 483,646.60 and 221,484.32 is: 305,641.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,476.91 : 483,646.60 = 221,484.32 : x
  2. Step 2: Convert to fraction form
    350,476.91/483,646.60 = 221,484.32/x
  3. Step 3: Cross multiply
    350,476.91x = 483,646.60 × 221,484.32
  4. Step 4: Simplify right side
    350,476.91x = 107,120,134,795.66
  5. Step 5: Solve for x
    x = 107,120,134,795.66/350,476.91
  6. Step 6: Final answer
    x = 305,641.06

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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.