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Finding the Fourth Proportional to 351,479.60, 526,830.60 and 193,821.20

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Solution

The fourth proportional to 351,479.60, 526,830.60 and 193,821.20 is: 290,517.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,479.60 : 526,830.60 = 193,821.20 : x
  2. Step 2: Convert to fraction form
    351,479.60/526,830.60 = 193,821.20/x
  3. Step 3: Cross multiply
    351,479.60x = 526,830.60 × 193,821.20
  4. Step 4: Simplify right side
    351,479.60x = 102,110,939,088.72
  5. Step 5: Solve for x
    x = 102,110,939,088.72/351,479.60
  6. Step 6: Final answer
    x = 290,517.40

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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.