Home / 439,749.40-659,624.10-190,917.40

Finding the Fourth Proportional to 439,749.40, 659,624.10 and 190,917.40

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Solution

The fourth proportional to 439,749.40, 659,624.10 and 190,917.40 is: 286,376.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,749.40 : 659,624.10 = 190,917.40 : x
  2. Step 2: Convert to fraction form
    439,749.40/659,624.10 = 190,917.40/x
  3. Step 3: Cross multiply
    439,749.40x = 659,624.10 × 190,917.40
  4. Step 4: Simplify right side
    439,749.40x = 125,933,718,149.34
  5. Step 5: Solve for x
    x = 125,933,718,149.34/439,749.40
  6. Step 6: Final answer
    x = 286,376.10

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Similar ratio
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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.