Home / 1,485,193.53-2,228,270.10-686,998.69

Finding the Fourth Proportional to 1,485,193.53, 2,228,270.10 and 686,998.69

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Solution

The fourth proportional to 1,485,193.53, 2,228,270.10 and 686,998.69 is: 1,030,719.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,485,193.53 : 2,228,270.10 = 686,998.69 : x
  2. Step 2: Convert to fraction form
    1,485,193.53/2,228,270.10 = 686,998.69/x
  3. Step 3: Cross multiply
    1,485,193.53x = 2,228,270.10 × 686,998.69
  4. Step 4: Simplify right side
    1,485,193.53x = 1,530,818,639,666.17
  5. Step 5: Solve for x
    x = 1,530,818,639,666.17/1,485,193.53
  6. Step 6: Final answer
    x = 1,030,719.98

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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.