Home / 289,471.21-398,971.53-192,501.73

Finding the Fourth Proportional to 289,471.21, 398,971.53 and 192,501.73

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Solution

The fourth proportional to 289,471.21, 398,971.53 and 192,501.73 is: 265,320.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,471.21 : 398,971.53 = 192,501.73 : x
  2. Step 2: Convert to fraction form
    289,471.21/398,971.53 = 192,501.73/x
  3. Step 3: Cross multiply
    289,471.21x = 398,971.53 × 192,501.73
  4. Step 4: Simplify right side
    289,471.21x = 76,802,710,244.46
  5. Step 5: Solve for x
    x = 76,802,710,244.46/289,471.21
  6. Step 6: Final answer
    x = 265,320.72

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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.