Home / 640,128.24-960,241.37-190,814.76

Finding the Fourth Proportional to 640,128.24, 960,241.37 and 190,814.76

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Solution

The fourth proportional to 640,128.24, 960,241.37 and 190,814.76 is: 286,236.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,128.24 : 960,241.37 = 190,814.76 : x
  2. Step 2: Convert to fraction form
    640,128.24/960,241.37 = 190,814.76/x
  3. Step 3: Cross multiply
    640,128.24x = 960,241.37 × 190,814.76
  4. Step 4: Simplify right side
    640,128.24x = 183,228,225,604.55
  5. Step 5: Solve for x
    x = 183,228,225,604.55/640,128.24
  6. Step 6: Final answer
    x = 286,236.75

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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.