Home / 805,309.88-1,111,299.30-442,731.11

Finding the Fourth Proportional to 805,309.88, 1,111,299.30 and 442,731.11

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Solution

The fourth proportional to 805,309.88, 1,111,299.30 and 442,731.11 is: 610,953.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,309.88 : 1,111,299.30 = 442,731.11 : x
  2. Step 2: Convert to fraction form
    805,309.88/1,111,299.30 = 442,731.11/x
  3. Step 3: Cross multiply
    805,309.88x = 1,111,299.30 × 442,731.11
  4. Step 4: Simplify right side
    805,309.88x = 492,006,767,074.73
  5. Step 5: Solve for x
    x = 492,006,767,074.73/805,309.88
  6. Step 6: Final answer
    x = 610,953.35

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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.