Home / 457,824.40-686,736.60-125,400.40

Finding the Fourth Proportional to 457,824.40, 686,736.60 and 125,400.40

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Solution

The fourth proportional to 457,824.40, 686,736.60 and 125,400.40 is: 188,100.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,824.40 : 686,736.60 = 125,400.40 : x
  2. Step 2: Convert to fraction form
    457,824.40/686,736.60 = 125,400.40/x
  3. Step 3: Cross multiply
    457,824.40x = 686,736.60 × 125,400.40
  4. Step 4: Simplify right side
    457,824.40x = 86,117,044,334.64
  5. Step 5: Solve for x
    x = 86,117,044,334.64/457,824.40
  6. Step 6: Final answer
    x = 188,100.60

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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.