Home / 807,969.41-1,115,005.36-445,406.23

Finding the Fourth Proportional to 807,969.41, 1,115,005.36 and 445,406.23

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Solution

The fourth proportional to 807,969.41, 1,115,005.36 and 445,406.23 is: 614,664.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,969.41 : 1,115,005.36 = 445,406.23 : x
  2. Step 2: Convert to fraction form
    807,969.41/1,115,005.36 = 445,406.23/x
  3. Step 3: Cross multiply
    807,969.41x = 1,115,005.36 × 445,406.23
  4. Step 4: Simplify right side
    807,969.41x = 496,630,329,926.36
  5. Step 5: Solve for x
    x = 496,630,329,926.36/807,969.41
  6. Step 6: Final answer
    x = 614,664.77

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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.