Home / 925,841.60-1,388,896.80-393,361.60

Finding the Fourth Proportional to 925,841.60, 1,388,896.80 and 393,361.60

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Solution

The fourth proportional to 925,841.60, 1,388,896.80 and 393,361.60 is: 590,099.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    925,841.60 : 1,388,896.80 = 393,361.60 : x
  2. Step 2: Convert to fraction form
    925,841.60/1,388,896.80 = 393,361.60/x
  3. Step 3: Cross multiply
    925,841.60x = 1,388,896.80 × 393,361.60
  4. Step 4: Simplify right side
    925,841.60x = 546,338,667,482.88
  5. Step 5: Solve for x
    x = 546,338,667,482.88/925,841.60
  6. Step 6: Final answer
    x = 590,099.50

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Double scale
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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.