Home / 807,965.05-1,114,999.53-445,401.89

Finding the Fourth Proportional to 807,965.05, 1,114,999.53 and 445,401.89

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Solution

The fourth proportional to 807,965.05, 1,114,999.53 and 445,401.89 is: 614,658.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,965.05 : 1,114,999.53 = 445,401.89 : x
  2. Step 2: Convert to fraction form
    807,965.05/1,114,999.53 = 445,401.89/x
  3. Step 3: Cross multiply
    807,965.05x = 1,114,999.53 × 445,401.89
  4. Step 4: Simplify right side
    807,965.05x = 496,622,895,569.25
  5. Step 5: Solve for x
    x = 496,622,895,569.25/807,965.05
  6. Step 6: Final answer
    x = 614,658.88

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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.