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Finding the Fourth Proportional to 343,418.35, 473,946.44 and 190,505.81

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Solution

The fourth proportional to 343,418.35, 473,946.44 and 190,505.81 is: 262,914.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,418.35 : 473,946.44 = 190,505.81 : x
  2. Step 2: Convert to fraction form
    343,418.35/473,946.44 = 190,505.81/x
  3. Step 3: Cross multiply
    343,418.35x = 473,946.44 × 190,505.81
  4. Step 4: Simplify right side
    343,418.35x = 90,289,550,182.11
  5. Step 5: Solve for x
    x = 90,289,550,182.11/343,418.35
  6. Step 6: Final answer
    x = 262,914.17

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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.