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Finding the Fourth Proportional to 343,920.39, 474,612.03 and 190,956.39

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Solution

The fourth proportional to 343,920.39, 474,612.03 and 190,956.39 is: 263,520.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,920.39 : 474,612.03 = 190,956.39 : x
  2. Step 2: Convert to fraction form
    343,920.39/474,612.03 = 190,956.39/x
  3. Step 3: Cross multiply
    343,920.39x = 474,612.03 × 190,956.39
  4. Step 4: Simplify right side
    343,920.39x = 90,630,199,899.37
  5. Step 5: Solve for x
    x = 90,630,199,899.37/343,920.39
  6. Step 6: Final answer
    x = 263,520.87

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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.