Home / 1,438,692.60-1,984,176.90-865,625.70

Finding the Fourth Proportional to 1,438,692.60, 1,984,176.90 and 865,625.70

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Solution

The fourth proportional to 1,438,692.60, 1,984,176.90 and 865,625.70 is: 1,193,830.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,438,692.60 : 1,984,176.90 = 865,625.70 : x
  2. Step 2: Convert to fraction form
    1,438,692.60/1,984,176.90 = 865,625.70/x
  3. Step 3: Cross multiply
    1,438,692.60x = 1,984,176.90 × 865,625.70
  4. Step 4: Simplify right side
    1,438,692.60x = 1,717,554,517,986.33
  5. Step 5: Solve for x
    x = 1,717,554,517,986.33/1,438,692.60
  6. Step 6: Final answer
    x = 1,193,830.09

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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.