Home / 692,738.88-956,139.03-406,351.23

Finding the Fourth Proportional to 692,738.88, 956,139.03 and 406,351.23

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Solution

The fourth proportional to 692,738.88, 956,139.03 and 406,351.23 is: 560,858.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,738.88 : 956,139.03 = 406,351.23 : x
  2. Step 2: Convert to fraction form
    692,738.88/956,139.03 = 406,351.23/x
  3. Step 3: Cross multiply
    692,738.88x = 956,139.03 × 406,351.23
  4. Step 4: Simplify right side
    692,738.88x = 388,528,270,891.51
  5. Step 5: Solve for x
    x = 388,528,270,891.51/692,738.88
  6. Step 6: Final answer
    x = 560,858.18

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Double scale
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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.