Home / 818,653.42-1,129,713.24-456,058.54

Finding the Fourth Proportional to 818,653.42, 1,129,713.24 and 456,058.54

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Solution

The fourth proportional to 818,653.42, 1,129,713.24 and 456,058.54 is: 629,344.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,653.42 : 1,129,713.24 = 456,058.54 : x
  2. Step 2: Convert to fraction form
    818,653.42/1,129,713.24 = 456,058.54/x
  3. Step 3: Cross multiply
    818,653.42x = 1,129,713.24 × 456,058.54
  4. Step 4: Simplify right side
    818,653.42x = 515,215,370,853.07
  5. Step 5: Solve for x
    x = 515,215,370,853.07/818,653.42
  6. Step 6: Final answer
    x = 629,344.92

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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.