Home / 839,106.30-1,257,675.30-439,541.40

Finding the Fourth Proportional to 839,106.30, 1,257,675.30 and 439,541.40

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Solution

The fourth proportional to 839,106.30, 1,257,675.30 and 439,541.40 is: 658,796.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,106.30 : 1,257,675.30 = 439,541.40 : x
  2. Step 2: Convert to fraction form
    839,106.30/1,257,675.30 = 439,541.40/x
  3. Step 3: Cross multiply
    839,106.30x = 1,257,675.30 × 439,541.40
  4. Step 4: Simplify right side
    839,106.30x = 552,800,362,107.42
  5. Step 5: Solve for x
    x = 552,800,362,107.42/839,106.30
  6. Step 6: Final answer
    x = 658,796.58

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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.