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Finding the Fourth Proportional to 343,618.02, 474,009.78 and 200,325.78

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Solution

The fourth proportional to 343,618.02, 474,009.78 and 200,325.78 is: 276,342.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,618.02 : 474,009.78 = 200,325.78 : x
  2. Step 2: Convert to fraction form
    343,618.02/474,009.78 = 200,325.78/x
  3. Step 3: Cross multiply
    343,618.02x = 474,009.78 × 200,325.78
  4. Step 4: Simplify right side
    343,618.02x = 94,956,378,906.13
  5. Step 5: Solve for x
    x = 94,956,378,906.13/343,618.02
  6. Step 6: Final answer
    x = 276,342.84

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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.