Home / 869,619.88-1,200,087.84-525,408.04

Finding the Fourth Proportional to 869,619.88, 1,200,087.84 and 525,408.04

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Solution

The fourth proportional to 869,619.88, 1,200,087.84 and 525,408.04 is: 725,070.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,619.88 : 1,200,087.84 = 525,408.04 : x
  2. Step 2: Convert to fraction form
    869,619.88/1,200,087.84 = 525,408.04/x
  3. Step 3: Cross multiply
    869,619.88x = 1,200,087.84 × 525,408.04
  4. Step 4: Simplify right side
    869,619.88x = 630,535,799,842.23
  5. Step 5: Solve for x
    x = 630,535,799,842.23/869,619.88
  6. Step 6: Final answer
    x = 725,070.59

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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.