Home / 260,406.39-390,606.81-197,612.26

Finding the Fourth Proportional to 260,406.39, 390,606.81 and 197,612.26

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Solution

The fourth proportional to 260,406.39, 390,606.81 and 197,612.26 is: 296,416.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,406.39 : 390,606.81 = 197,612.26 : x
  2. Step 2: Convert to fraction form
    260,406.39/390,606.81 = 197,612.26/x
  3. Step 3: Cross multiply
    260,406.39x = 390,606.81 × 197,612.26
  4. Step 4: Simplify right side
    260,406.39x = 77,188,692,777.93
  5. Step 5: Solve for x
    x = 77,188,692,777.93/260,406.39
  6. Step 6: Final answer
    x = 296,416.27

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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.