Home / 457,307.20-686,033.70-190,930.60

Finding the Fourth Proportional to 457,307.20, 686,033.70 and 190,930.60

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Solution

The fourth proportional to 457,307.20, 686,033.70 and 190,930.60 is: 286,426.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,307.20 : 686,033.70 = 190,930.60 : x
  2. Step 2: Convert to fraction form
    457,307.20/686,033.70 = 190,930.60/x
  3. Step 3: Cross multiply
    457,307.20x = 686,033.70 × 190,930.60
  4. Step 4: Simplify right side
    457,307.20x = 130,984,825,961.22
  5. Step 5: Solve for x
    x = 130,984,825,961.22/457,307.20
  6. Step 6: Final answer
    x = 286,426.34

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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.