Home / 831,359.90-1,247,407.05-404,659.10

Finding the Fourth Proportional to 831,359.90, 1,247,407.05 and 404,659.10

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Solution

The fourth proportional to 831,359.90, 1,247,407.05 and 404,659.10 is: 607,167.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,359.90 : 1,247,407.05 = 404,659.10 : x
  2. Step 2: Convert to fraction form
    831,359.90/1,247,407.05 = 404,659.10/x
  3. Step 3: Cross multiply
    831,359.90x = 1,247,407.05 × 404,659.10
  4. Step 4: Simplify right side
    831,359.90x = 504,774,614,186.66
  5. Step 5: Solve for x
    x = 504,774,614,186.66/831,359.90
  6. Step 6: Final answer
    x = 607,167.38

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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.