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Finding the Fourth Proportional to 338,783.76, 508,071.60 and 234,274.32

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Solution

The fourth proportional to 338,783.76, 508,071.60 and 234,274.32 is: 351,339.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,783.76 : 508,071.60 = 234,274.32 : x
  2. Step 2: Convert to fraction form
    338,783.76/508,071.60 = 234,274.32/x
  3. Step 3: Cross multiply
    338,783.76x = 508,071.60 × 234,274.32
  4. Step 4: Simplify right side
    338,783.76x = 119,028,128,601.31
  5. Step 5: Solve for x
    x = 119,028,128,601.31/338,783.76
  6. Step 6: Final answer
    x = 351,339.53

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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.