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Finding the Fourth Proportional to 344,474.15, 475,384.65 and 189,417.42

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Solution

The fourth proportional to 344,474.15, 475,384.65 and 189,417.42 is: 261,401.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,474.15 : 475,384.65 = 189,417.42 : x
  2. Step 2: Convert to fraction form
    344,474.15/475,384.65 = 189,417.42/x
  3. Step 3: Cross multiply
    344,474.15x = 475,384.65 × 189,417.42
  4. Step 4: Simplify right side
    344,474.15x = 90,046,133,200.29
  5. Step 5: Solve for x
    x = 90,046,133,200.29/344,474.15
  6. Step 6: Final answer
    x = 261,401.71

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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.