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Finding the Fourth Proportional to 446,782.72, 615,985.28 and 365,912.32

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Solution

The fourth proportional to 446,782.72, 615,985.28 and 365,912.32 is: 504,488.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,782.72 : 615,985.28 = 365,912.32 : x
  2. Step 2: Convert to fraction form
    446,782.72/615,985.28 = 365,912.32/x
  3. Step 3: Cross multiply
    446,782.72x = 615,985.28 × 365,912.32
  4. Step 4: Simplify right side
    446,782.72x = 225,396,602,890.65
  5. Step 5: Solve for x
    x = 225,396,602,890.65/446,782.72
  6. Step 6: Final answer
    x = 504,488.18

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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.