Home / 1,409,718.23-1,945,412.87-765,138.59

Finding the Fourth Proportional to 1,409,718.23, 1,945,412.87 and 765,138.59

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Solution

The fourth proportional to 1,409,718.23, 1,945,412.87 and 765,138.59 is: 1,055,892.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,409,718.23 : 1,945,412.87 = 765,138.59 : x
  2. Step 2: Convert to fraction form
    1,409,718.23/1,945,412.87 = 765,138.59/x
  3. Step 3: Cross multiply
    1,409,718.23x = 1,945,412.87 × 765,138.59
  4. Step 4: Simplify right side
    1,409,718.23x = 1,488,510,460,319.65
  5. Step 5: Solve for x
    x = 1,488,510,460,319.65/1,409,718.23
  6. Step 6: Final answer
    x = 1,055,892.18

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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.