Home / 839,916.81-1,259,876.16-208,830.69

Finding the Fourth Proportional to 839,916.81, 1,259,876.16 and 208,830.69

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Solution

The fourth proportional to 839,916.81, 1,259,876.16 and 208,830.69 is: 313,246.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,916.81 : 1,259,876.16 = 208,830.69 : x
  2. Step 2: Convert to fraction form
    839,916.81/1,259,876.16 = 208,830.69/x
  3. Step 3: Cross multiply
    839,916.81x = 1,259,876.16 × 208,830.69
  4. Step 4: Simplify right side
    839,916.81x = 263,100,807,807.35
  5. Step 5: Solve for x
    x = 263,100,807,807.35/839,916.81
  6. Step 6: Final answer
    x = 313,246.27

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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.