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Finding the Fourth Proportional to 621,071.54, 931,555.36 and 171,797.94

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Solution

The fourth proportional to 621,071.54, 931,555.36 and 171,797.94 is: 257,682.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,071.54 : 931,555.36 = 171,797.94 : x
  2. Step 2: Convert to fraction form
    621,071.54/931,555.36 = 171,797.94/x
  3. Step 3: Cross multiply
    621,071.54x = 931,555.36 × 171,797.94
  4. Step 4: Simplify right side
    621,071.54x = 160,039,291,843.96
  5. Step 5: Solve for x
    x = 160,039,291,843.96/621,071.54
  6. Step 6: Final answer
    x = 257,682.54

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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.