Home / 289,867.54-434,831.09-100,327.59

Finding the Fourth Proportional to 289,867.54, 434,831.09 and 100,327.59

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Solution

The fourth proportional to 289,867.54, 434,831.09 and 100,327.59 is: 150,501.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,867.54 : 434,831.09 = 100,327.59 : x
  2. Step 2: Convert to fraction form
    289,867.54/434,831.09 = 100,327.59/x
  3. Step 3: Cross multiply
    289,867.54x = 434,831.09 × 100,327.59
  4. Step 4: Simplify right side
    289,867.54x = 43,625,555,567.59
  5. Step 5: Solve for x
    x = 43,625,555,567.59/289,867.54
  6. Step 6: Final answer
    x = 150,501.70

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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.