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Finding the Fourth Proportional to 343,979.43, 474,670.44 and 191,008.32

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Solution

The fourth proportional to 343,979.43, 474,670.44 and 191,008.32 is: 263,579.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,979.43 : 474,670.44 = 191,008.32 : x
  2. Step 2: Convert to fraction form
    343,979.43/474,670.44 = 191,008.32/x
  3. Step 3: Cross multiply
    343,979.43x = 474,670.44 × 191,008.32
  4. Step 4: Simplify right side
    343,979.43x = 90,666,003,298.06
  5. Step 5: Solve for x
    x = 90,666,003,298.06/343,979.43
  6. Step 6: Final answer
    x = 263,579.72

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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.