Home / 658,621.82-908,828.56-372,086.57

Finding the Fourth Proportional to 658,621.82, 908,828.56 and 372,086.57

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Solution

The fourth proportional to 658,621.82, 908,828.56 and 372,086.57 is: 513,440.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,621.82 : 908,828.56 = 372,086.57 : x
  2. Step 2: Convert to fraction form
    658,621.82/908,828.56 = 372,086.57/x
  3. Step 3: Cross multiply
    658,621.82x = 908,828.56 × 372,086.57
  4. Step 4: Simplify right side
    658,621.82x = 338,162,901,608.44
  5. Step 5: Solve for x
    x = 338,162,901,608.44/658,621.82
  6. Step 6: Final answer
    x = 513,440.17

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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.