Home / 382,496.43-527,862.93-221,320.30

Finding the Fourth Proportional to 382,496.43, 527,862.93 and 221,320.30

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Solution

The fourth proportional to 382,496.43, 527,862.93 and 221,320.30 is: 305,432.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,496.43 : 527,862.93 = 221,320.30 : x
  2. Step 2: Convert to fraction form
    382,496.43/527,862.93 = 221,320.30/x
  3. Step 3: Cross multiply
    382,496.43x = 527,862.93 × 221,320.30
  4. Step 4: Simplify right side
    382,496.43x = 116,826,782,026.48
  5. Step 5: Solve for x
    x = 116,826,782,026.48/382,496.43
  6. Step 6: Final answer
    x = 305,432.35

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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.