Home / 683,630.24-943,424.40-381,824.80

Finding the Fourth Proportional to 683,630.24, 943,424.40 and 381,824.80

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Solution

The fourth proportional to 683,630.24, 943,424.40 and 381,824.80 is: 526,926.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,630.24 : 943,424.40 = 381,824.80 : x
  2. Step 2: Convert to fraction form
    683,630.24/943,424.40 = 381,824.80/x
  3. Step 3: Cross multiply
    683,630.24x = 943,424.40 × 381,824.80
  4. Step 4: Simplify right side
    683,630.24x = 360,222,832,845.12
  5. Step 5: Solve for x
    x = 360,222,832,845.12/683,630.24
  6. Step 6: Final answer
    x = 526,926.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.