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Finding the Fourth Proportional to 343,370.88, 473,838.66 and 190,415.34

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Solution

The fourth proportional to 343,370.88, 473,838.66 and 190,415.34 is: 262,765.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,370.88 : 473,838.66 = 190,415.34 : x
  2. Step 2: Convert to fraction form
    343,370.88/473,838.66 = 190,415.34/x
  3. Step 3: Cross multiply
    343,370.88x = 473,838.66 × 190,415.34
  4. Step 4: Simplify right side
    343,370.88x = 90,226,149,549.04
  5. Step 5: Solve for x
    x = 90,226,149,549.04/343,370.88
  6. Step 6: Final answer
    x = 262,765.87

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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.