Home / 807,867.95-1,114,865.19-445,305.72

Finding the Fourth Proportional to 807,867.95, 1,114,865.19 and 445,305.72

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Solution

The fourth proportional to 807,867.95, 1,114,865.19 and 445,305.72 is: 614,525.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,867.95 : 1,114,865.19 = 445,305.72 : x
  2. Step 2: Convert to fraction form
    807,867.95/1,114,865.19 = 445,305.72/x
  3. Step 3: Cross multiply
    807,867.95x = 1,114,865.19 × 445,305.72
  4. Step 4: Simplify right side
    807,867.95x = 496,455,846,135.89
  5. Step 5: Solve for x
    x = 496,455,846,135.89/807,867.95
  6. Step 6: Final answer
    x = 614,525.99

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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.