Home / 1,173,186.96-1,618,997.98-636,642.96

Finding the Fourth Proportional to 1,173,186.96, 1,618,997.98 and 636,642.96

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Solution

The fourth proportional to 1,173,186.96, 1,618,997.98 and 636,642.96 is: 878,567.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,173,186.96 : 1,618,997.98 = 636,642.96 : x
  2. Step 2: Convert to fraction form
    1,173,186.96/1,618,997.98 = 636,642.96/x
  3. Step 3: Cross multiply
    1,173,186.96x = 1,618,997.98 × 636,642.96
  4. Step 4: Simplify right side
    1,173,186.96x = 1,030,723,666,221.22
  5. Step 5: Solve for x
    x = 1,030,723,666,221.22/1,173,186.96
  6. Step 6: Final answer
    x = 878,567.27

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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.