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Finding the Fourth Proportional to 350,832.84, 484,148.34 and 189,686.76

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Solution

The fourth proportional to 350,832.84, 484,148.34 and 189,686.76 is: 261,767.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,832.84 : 484,148.34 = 189,686.76 : x
  2. Step 2: Convert to fraction form
    350,832.84/484,148.34 = 189,686.76/x
  3. Step 3: Cross multiply
    350,832.84x = 484,148.34 × 189,686.76
  4. Step 4: Simplify right side
    350,832.84x = 91,836,529,973.98
  5. Step 5: Solve for x
    x = 91,836,529,973.98/350,832.84
  6. Step 6: Final answer
    x = 261,767.20

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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.