Home / 389,272.17-537,195.69-219,506.34

Finding the Fourth Proportional to 389,272.17, 537,195.69 and 219,506.34

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Solution

The fourth proportional to 389,272.17, 537,195.69 and 219,506.34 is: 302,918.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,272.17 : 537,195.69 = 219,506.34 : x
  2. Step 2: Convert to fraction form
    389,272.17/537,195.69 = 219,506.34/x
  3. Step 3: Cross multiply
    389,272.17x = 537,195.69 × 219,506.34
  4. Step 4: Simplify right side
    389,272.17x = 117,917,859,775.68
  5. Step 5: Solve for x
    x = 117,917,859,775.68/389,272.17
  6. Step 6: Final answer
    x = 302,918.80

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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.