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Finding the Fourth Proportional to 339,336.74, 508,655.19 and 152,479.46

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Solution

The fourth proportional to 339,336.74, 508,655.19 and 152,479.46 is: 228,561.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,336.74 : 508,655.19 = 152,479.46 : x
  2. Step 2: Convert to fraction form
    339,336.74/508,655.19 = 152,479.46/x
  3. Step 3: Cross multiply
    339,336.74x = 508,655.19 × 152,479.46
  4. Step 4: Simplify right side
    339,336.74x = 77,559,470,540.83
  5. Step 5: Solve for x
    x = 77,559,470,540.83/339,336.74
  6. Step 6: Final answer
    x = 228,561.96

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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.