Home / 839,900.68-1,159,029.54-495,847.42

Finding the Fourth Proportional to 839,900.68, 1,159,029.54 and 495,847.42

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Solution

The fourth proportional to 839,900.68, 1,159,029.54 and 495,847.42 is: 684,249.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,900.68 : 1,159,029.54 = 495,847.42 : x
  2. Step 2: Convert to fraction form
    839,900.68/1,159,029.54 = 495,847.42/x
  3. Step 3: Cross multiply
    839,900.68x = 1,159,029.54 × 495,847.42
  4. Step 4: Simplify right side
    839,900.68x = 574,701,807,112.79
  5. Step 5: Solve for x
    x = 574,701,807,112.79/839,900.68
  6. Step 6: Final answer
    x = 684,249.72

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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.