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Finding the Fourth Proportional to 343,722.16, 474,230.28 and 200,380.74

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Solution

The fourth proportional to 343,722.16, 474,230.28 and 200,380.74 is: 276,463.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,722.16 : 474,230.28 = 200,380.74 : x
  2. Step 2: Convert to fraction form
    343,722.16/474,230.28 = 200,380.74/x
  3. Step 3: Cross multiply
    343,722.16x = 474,230.28 × 200,380.74
  4. Step 4: Simplify right side
    343,722.16x = 95,026,614,436.81
  5. Step 5: Solve for x
    x = 95,026,614,436.81/343,722.16
  6. Step 6: Final answer
    x = 276,463.45

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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.