Home / 1,278,409.01-1,764,193.33-697,643.63

Finding the Fourth Proportional to 1,278,409.01, 1,764,193.33 and 697,643.63

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Solution

The fourth proportional to 1,278,409.01, 1,764,193.33 and 697,643.63 is: 962,742.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,278,409.01 : 1,764,193.33 = 697,643.63 : x
  2. Step 2: Convert to fraction form
    1,278,409.01/1,764,193.33 = 697,643.63/x
  3. Step 3: Cross multiply
    1,278,409.01x = 1,764,193.33 × 697,643.63
  4. Step 4: Simplify right side
    1,278,409.01x = 1,230,778,238,762.99
  5. Step 5: Solve for x
    x = 1,230,778,238,762.99/1,278,409.01
  6. Step 6: Final answer
    x = 962,742.15

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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.