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Finding the Fourth Proportional to 483,385.22, 725,237.75 and 258,695.57

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Solution

The fourth proportional to 483,385.22, 725,237.75 and 258,695.57 is: 388,128.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,385.22 : 725,237.75 = 258,695.57 : x
  2. Step 2: Convert to fraction form
    483,385.22/725,237.75 = 258,695.57/x
  3. Step 3: Cross multiply
    483,385.22x = 725,237.75 × 258,695.57
  4. Step 4: Simplify right side
    483,385.22x = 187,615,795,581.60
  5. Step 5: Solve for x
    x = 187,615,795,581.60/483,385.22
  6. Step 6: Final answer
    x = 388,128.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.