Home / 785,708.16-1,084,277.44-428,012.16

Finding the Fourth Proportional to 785,708.16, 1,084,277.44 and 428,012.16

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Solution

The fourth proportional to 785,708.16, 1,084,277.44 and 428,012.16 is: 590,656.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,708.16 : 1,084,277.44 = 428,012.16 : x
  2. Step 2: Convert to fraction form
    785,708.16/1,084,277.44 = 428,012.16/x
  3. Step 3: Cross multiply
    785,708.16x = 1,084,277.44 × 428,012.16
  4. Step 4: Simplify right side
    785,708.16x = 464,083,929,133.67
  5. Step 5: Solve for x
    x = 464,083,929,133.67/785,708.16
  6. Step 6: Final answer
    x = 590,656.88

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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.