Home / 621,835.54-931,258.56-354,786.42

Finding the Fourth Proportional to 621,835.54, 931,258.56 and 354,786.42

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Solution

The fourth proportional to 621,835.54, 931,258.56 and 354,786.42 is: 531,326.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,835.54 : 931,258.56 = 354,786.42 : x
  2. Step 2: Convert to fraction form
    621,835.54/931,258.56 = 354,786.42/x
  3. Step 3: Cross multiply
    621,835.54x = 931,258.56 × 354,786.42
  4. Step 4: Simplify right side
    621,835.54x = 330,397,890,596.76
  5. Step 5: Solve for x
    x = 330,397,890,596.76/621,835.54
  6. Step 6: Final answer
    x = 531,326.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.