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Finding the Fourth Proportional to 336,111.20, 504,166.80 and 305,007.20

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Solution

The fourth proportional to 336,111.20, 504,166.80 and 305,007.20 is: 457,510.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,111.20 : 504,166.80 = 305,007.20 : x
  2. Step 2: Convert to fraction form
    336,111.20/504,166.80 = 305,007.20/x
  3. Step 3: Cross multiply
    336,111.20x = 504,166.80 × 305,007.20
  4. Step 4: Simplify right side
    336,111.20x = 153,774,504,000.96
  5. Step 5: Solve for x
    x = 153,774,504,000.96/336,111.20
  6. Step 6: Final answer
    x = 457,510.80

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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.