Home / 515,913.20-773,869.80-141,935.60

Finding the Fourth Proportional to 515,913.20, 773,869.80 and 141,935.60

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Solution

The fourth proportional to 515,913.20, 773,869.80 and 141,935.60 is: 212,903.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,913.20 : 773,869.80 = 141,935.60 : x
  2. Step 2: Convert to fraction form
    515,913.20/773,869.80 = 141,935.60/x
  3. Step 3: Cross multiply
    515,913.20x = 773,869.80 × 141,935.60
  4. Step 4: Simplify right side
    515,913.20x = 109,839,674,384.88
  5. Step 5: Solve for x
    x = 109,839,674,384.88/515,913.20
  6. Step 6: Final answer
    x = 212,903.40

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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.