Home / 839,300.55-1,259,322.95-439,846.35

Finding the Fourth Proportional to 839,300.55, 1,259,322.95 and 439,846.35

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Solution

The fourth proportional to 839,300.55, 1,259,322.95 and 439,846.35 is: 659,964.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,300.55 : 1,259,322.95 = 439,846.35 : x
  2. Step 2: Convert to fraction form
    839,300.55/1,259,322.95 = 439,846.35/x
  3. Step 3: Cross multiply
    839,300.55x = 1,259,322.95 × 439,846.35
  4. Step 4: Simplify right side
    839,300.55x = 553,908,603,028.73
  5. Step 5: Solve for x
    x = 553,908,603,028.73/839,300.55
  6. Step 6: Final answer
    x = 659,964.54

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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.