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Finding the Fourth Proportional to 506,674.56, 699,223.86 and 305,483.52

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Solution

The fourth proportional to 506,674.56, 699,223.86 and 305,483.52 is: 421,575.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    506,674.56 : 699,223.86 = 305,483.52 : x
  2. Step 2: Convert to fraction form
    506,674.56/699,223.86 = 305,483.52/x
  3. Step 3: Cross multiply
    506,674.56x = 699,223.86 × 305,483.52
  4. Step 4: Simplify right side
    506,674.56x = 213,601,366,020.79
  5. Step 5: Solve for x
    x = 213,601,366,020.79/506,674.56
  6. Step 6: Final answer
    x = 421,575.08

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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.