Home / 831,615.56-1,246,362.78-405,253.16

Finding the Fourth Proportional to 831,615.56, 1,246,362.78 and 405,253.16

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Solution

The fourth proportional to 831,615.56, 1,246,362.78 and 405,253.16 is: 607,362.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,615.56 : 1,246,362.78 = 405,253.16 : x
  2. Step 2: Convert to fraction form
    831,615.56/1,246,362.78 = 405,253.16/x
  3. Step 3: Cross multiply
    831,615.56x = 1,246,362.78 × 405,253.16
  4. Step 4: Simplify right side
    831,615.56x = 505,092,455,101.39
  5. Step 5: Solve for x
    x = 505,092,455,101.39/831,615.56
  6. Step 6: Final answer
    x = 607,362.92

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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.