Home / 839,707.65-1,158,083.49-709,523.13

Finding the Fourth Proportional to 839,707.65, 1,158,083.49 and 709,523.13

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Solution

The fourth proportional to 839,707.65, 1,158,083.49 and 709,523.13 is: 978,539.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,707.65 : 1,158,083.49 = 709,523.13 : x
  2. Step 2: Convert to fraction form
    839,707.65/1,158,083.49 = 709,523.13/x
  3. Step 3: Cross multiply
    839,707.65x = 1,158,083.49 × 709,523.13
  4. Step 4: Simplify right side
    839,707.65x = 821,687,022,626.12
  5. Step 5: Solve for x
    x = 821,687,022,626.12/839,707.65
  6. Step 6: Final answer
    x = 978,539.40

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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.