Home / 831,653.52-1,247,614.80-325,940.14

Finding the Fourth Proportional to 831,653.52, 1,247,614.80 and 325,940.14

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Solution

The fourth proportional to 831,653.52, 1,247,614.80 and 325,940.14 is: 488,962.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,653.52 : 1,247,614.80 = 325,940.14 : x
  2. Step 2: Convert to fraction form
    831,653.52/1,247,614.80 = 325,940.14/x
  3. Step 3: Cross multiply
    831,653.52x = 1,247,614.80 × 325,940.14
  4. Step 4: Simplify right side
    831,653.52x = 406,647,742,578.07
  5. Step 5: Solve for x
    x = 406,647,742,578.07/831,653.52
  6. Step 6: Final answer
    x = 488,962.93

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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.