Home / 389,189.38-537,060.49-219,412.57

Finding the Fourth Proportional to 389,189.38, 537,060.49 and 219,412.57

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Solution

The fourth proportional to 389,189.38, 537,060.49 and 219,412.57 is: 302,777.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,189.38 : 537,060.49 = 219,412.57 : x
  2. Step 2: Convert to fraction form
    389,189.38/537,060.49 = 219,412.57/x
  3. Step 3: Cross multiply
    389,189.38x = 537,060.49 × 219,412.57
  4. Step 4: Simplify right side
    389,189.38x = 117,837,822,356.36
  5. Step 5: Solve for x
    x = 117,837,822,356.36/389,189.38
  6. Step 6: Final answer
    x = 302,777.59

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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.