Home / 389,273.17-537,197.07-219,507.34

Finding the Fourth Proportional to 389,273.17, 537,197.07 and 219,507.34

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Solution

The fourth proportional to 389,273.17, 537,197.07 and 219,507.34 is: 302,920.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,273.17 : 537,197.07 = 219,507.34 : x
  2. Step 2: Convert to fraction form
    389,273.17/537,197.07 = 219,507.34/x
  3. Step 3: Cross multiply
    389,273.17x = 537,197.07 × 219,507.34
  4. Step 4: Simplify right side
    389,273.17x = 117,918,699,891.49
  5. Step 5: Solve for x
    x = 117,918,699,891.49/389,273.17
  6. Step 6: Final answer
    x = 302,920.18

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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.