Home / 839,130.68-1,258,144.56-406,733.70

Finding the Fourth Proportional to 839,130.68, 1,258,144.56 and 406,733.70

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Solution

The fourth proportional to 839,130.68, 1,258,144.56 and 406,733.70 is: 609,833.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,130.68 : 1,258,144.56 = 406,733.70 : x
  2. Step 2: Convert to fraction form
    839,130.68/1,258,144.56 = 406,733.70/x
  3. Step 3: Cross multiply
    839,130.68x = 1,258,144.56 × 406,733.70
  4. Step 4: Simplify right side
    839,130.68x = 511,729,792,023.67
  5. Step 5: Solve for x
    x = 511,729,792,023.67/839,130.68
  6. Step 6: Final answer
    x = 609,833.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.