Home / 807,689.67-1,114,619.30-445,126.78

Finding the Fourth Proportional to 807,689.67, 1,114,619.30 and 445,126.78

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Solution

The fourth proportional to 807,689.67, 1,114,619.30 and 445,126.78 is: 614,279.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,689.67 : 1,114,619.30 = 445,126.78 : x
  2. Step 2: Convert to fraction form
    807,689.67/1,114,619.30 = 445,126.78/x
  3. Step 3: Cross multiply
    807,689.67x = 1,114,619.30 × 445,126.78
  4. Step 4: Simplify right side
    807,689.67x = 496,146,899,934.85
  5. Step 5: Solve for x
    x = 496,146,899,934.85/807,689.67
  6. Step 6: Final answer
    x = 614,279.12

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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.