Home / 1,790,813.80-2,686,220.70-528,639.40

Finding the Fourth Proportional to 1,790,813.80, 2,686,220.70 and 528,639.40

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Solution

The fourth proportional to 1,790,813.80, 2,686,220.70 and 528,639.40 is: 792,959.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,790,813.80 : 2,686,220.70 = 528,639.40 : x
  2. Step 2: Convert to fraction form
    1,790,813.80/2,686,220.70 = 528,639.40/x
  3. Step 3: Cross multiply
    1,790,813.80x = 2,686,220.70 × 528,639.40
  4. Step 4: Simplify right side
    1,790,813.80x = 1,420,042,099,115.58
  5. Step 5: Solve for x
    x = 1,420,042,099,115.58/1,790,813.80
  6. Step 6: Final answer
    x = 792,959.10

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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.