Home / 1,282,099.98-1,769,179.07-709,127.85

Finding the Fourth Proportional to 1,282,099.98, 1,769,179.07 and 709,127.85

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Solution

The fourth proportional to 1,282,099.98, 1,769,179.07 and 709,127.85 is: 978,530.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,282,099.98 : 1,769,179.07 = 709,127.85 : x
  2. Step 2: Convert to fraction form
    1,282,099.98/1,769,179.07 = 709,127.85/x
  3. Step 3: Cross multiply
    1,282,099.98x = 1,769,179.07 × 709,127.85
  4. Step 4: Simplify right side
    1,282,099.98x = 1,254,574,146,628.46
  5. Step 5: Solve for x
    x = 1,254,574,146,628.46/1,282,099.98
  6. Step 6: Final answer
    x = 978,530.67

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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.