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Finding the Fourth Proportional to 393,751.23, 590,364.40 and 191,293.35

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Solution

The fourth proportional to 393,751.23, 590,364.40 and 191,293.35 is: 286,812.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,751.23 : 590,364.40 = 191,293.35 : x
  2. Step 2: Convert to fraction form
    393,751.23/590,364.40 = 191,293.35/x
  3. Step 3: Cross multiply
    393,751.23x = 590,364.40 × 191,293.35
  4. Step 4: Simplify right side
    393,751.23x = 112,932,783,796.74
  5. Step 5: Solve for x
    x = 112,932,783,796.74/393,751.23
  6. Step 6: Final answer
    x = 286,812.52

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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.