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Finding the Fourth Proportional to 472,383.13, 708,086.36 and 219,457.25

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Solution

The fourth proportional to 472,383.13, 708,086.36 and 219,457.25 is: 328,959.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,383.13 : 708,086.36 = 219,457.25 : x
  2. Step 2: Convert to fraction form
    472,383.13/708,086.36 = 219,457.25/x
  3. Step 3: Cross multiply
    472,383.13x = 708,086.36 × 219,457.25
  4. Step 4: Simplify right side
    472,383.13x = 155,394,685,328.11
  5. Step 5: Solve for x
    x = 155,394,685,328.11/472,383.13
  6. Step 6: Final answer
    x = 328,959.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.