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Finding the Fourth Proportional to 353,059.86, 487,222.94 and 191,914.91

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Solution

The fourth proportional to 353,059.86, 487,222.94 and 191,914.91 is: 264,842.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,059.86 : 487,222.94 = 191,914.91 : x
  2. Step 2: Convert to fraction form
    353,059.86/487,222.94 = 191,914.91/x
  3. Step 3: Cross multiply
    353,059.86x = 487,222.94 × 191,914.91
  4. Step 4: Simplify right side
    353,059.86x = 93,505,343,284.35
  5. Step 5: Solve for x
    x = 93,505,343,284.35/353,059.86
  6. Step 6: Final answer
    x = 264,842.75

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1.5x scale

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.