Home / 288,581.13-398,296.74-190,291.38

Finding the Fourth Proportional to 288,581.13, 398,296.74 and 190,291.38

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Solution

The fourth proportional to 288,581.13, 398,296.74 and 190,291.38 is: 262,638.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,581.13 : 398,296.74 = 190,291.38 : x
  2. Step 2: Convert to fraction form
    288,581.13/398,296.74 = 190,291.38/x
  3. Step 3: Cross multiply
    288,581.13x = 398,296.74 × 190,291.38
  4. Step 4: Simplify right side
    288,581.13x = 75,792,435,524.08
  5. Step 5: Solve for x
    x = 75,792,435,524.08/288,581.13
  6. Step 6: Final answer
    x = 262,638.22

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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.