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Finding the Fourth Proportional to 446,803.60, 616,383.48 and 395,868.28

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Solution

The fourth proportional to 446,803.60, 616,383.48 and 395,868.28 is: 546,116.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,803.60 : 616,383.48 = 395,868.28 : x
  2. Step 2: Convert to fraction form
    446,803.60/616,383.48 = 395,868.28/x
  3. Step 3: Cross multiply
    446,803.60x = 616,383.48 × 395,868.28
  4. Step 4: Simplify right side
    446,803.60x = 244,006,668,048.01
  5. Step 5: Solve for x
    x = 244,006,668,048.01/446,803.60
  6. Step 6: Final answer
    x = 546,116.16

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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.