Home / 839,231.80-1,158,145.50-457,257.40

Finding the Fourth Proportional to 839,231.80, 1,158,145.50 and 457,257.40

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Solution

The fourth proportional to 839,231.80, 1,158,145.50 and 457,257.40 is: 631,018.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,231.80 : 1,158,145.50 = 457,257.40 : x
  2. Step 2: Convert to fraction form
    839,231.80/1,158,145.50 = 457,257.40/x
  3. Step 3: Cross multiply
    839,231.80x = 1,158,145.50 × 457,257.40
  4. Step 4: Simplify right side
    839,231.80x = 529,570,600,151.70
  5. Step 5: Solve for x
    x = 529,570,600,151.70/839,231.80
  6. Step 6: Final answer
    x = 631,018.27

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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.