Home / 283,376.34-390,394.20-197,187.11

Finding the Fourth Proportional to 283,376.34, 390,394.20 and 197,187.11

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Solution

The fourth proportional to 283,376.34, 390,394.20 and 197,187.11 is: 271,655.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,376.34 : 390,394.20 = 197,187.11 : x
  2. Step 2: Convert to fraction form
    283,376.34/390,394.20 = 197,187.11/x
  3. Step 3: Cross multiply
    283,376.34x = 390,394.20 × 197,187.11
  4. Step 4: Simplify right side
    283,376.34x = 76,980,703,201.04
  5. Step 5: Solve for x
    x = 76,980,703,201.04/283,376.34
  6. Step 6: Final answer
    x = 271,655.37

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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.