Home / 302,890.56-417,991.68-189,779.52

Finding the Fourth Proportional to 302,890.56, 417,991.68 and 189,779.52

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Solution

The fourth proportional to 302,890.56, 417,991.68 and 189,779.52 is: 261,897.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,890.56 : 417,991.68 = 189,779.52 : x
  2. Step 2: Convert to fraction form
    302,890.56/417,991.68 = 189,779.52/x
  3. Step 3: Cross multiply
    302,890.56x = 417,991.68 × 189,779.52
  4. Step 4: Simplify right side
    302,890.56x = 79,326,260,394.39
  5. Step 5: Solve for x
    x = 79,326,260,394.39/302,890.56
  6. Step 6: Final answer
    x = 261,897.43

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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.