Home / 831,982.74-1,148,145.21-505,200.66

Finding the Fourth Proportional to 831,982.74, 1,148,145.21 and 505,200.66

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Solution

The fourth proportional to 831,982.74, 1,148,145.21 and 505,200.66 is: 697,182.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,982.74 : 1,148,145.21 = 505,200.66 : x
  2. Step 2: Convert to fraction form
    831,982.74/1,148,145.21 = 505,200.66/x
  3. Step 3: Cross multiply
    831,982.74x = 1,148,145.21 × 505,200.66
  4. Step 4: Simplify right side
    831,982.74x = 580,043,717,867.84
  5. Step 5: Solve for x
    x = 580,043,717,867.84/831,982.74
  6. Step 6: Final answer
    x = 697,182.39

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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.