Home / 1,391,211-2,086,208.82-492,354.12

Finding the Fourth Proportional to 1,391,211, 2,086,208.82 and 492,354.12

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Solution

The fourth proportional to 1,391,211, 2,086,208.82 and 492,354.12 is: 738,316.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,391,211 : 2,086,208.82 = 492,354.12 : x
  2. Step 2: Convert to fraction form
    1,391,211/2,086,208.82 = 492,354.12/x
  3. Step 3: Cross multiply
    1,391,211x = 2,086,208.82 × 492,354.12
  4. Step 4: Simplify right side
    1,391,211x = 1,027,153,507,707.34
  5. Step 5: Solve for x
    x = 1,027,153,507,707.34/1,391,211
  6. Step 6: Final answer
    x = 738,316.12

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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.