Home / 839,198.20-1,158,106.80-457,224.88

Finding the Fourth Proportional to 839,198.20, 1,158,106.80 and 457,224.88

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Solution

The fourth proportional to 839,198.20, 1,158,106.80 and 457,224.88 is: 630,977.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,198.20 : 1,158,106.80 = 457,224.88 : x
  2. Step 2: Convert to fraction form
    839,198.20/1,158,106.80 = 457,224.88/x
  3. Step 3: Cross multiply
    839,198.20x = 1,158,106.80 × 457,224.88
  4. Step 4: Simplify right side
    839,198.20x = 529,515,242,657.18
  5. Step 5: Solve for x
    x = 529,515,242,657.18/839,198.20
  6. Step 6: Final answer
    x = 630,977.57

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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.