Home / 805,357.82-1,111,394.30-442,787.87

Finding the Fourth Proportional to 805,357.82, 1,111,394.30 and 442,787.87

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Solution

The fourth proportional to 805,357.82, 1,111,394.30 and 442,787.87 is: 611,047.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,357.82 : 1,111,394.30 = 442,787.87 : x
  2. Step 2: Convert to fraction form
    805,357.82/1,111,394.30 = 442,787.87/x
  3. Step 3: Cross multiply
    805,357.82x = 1,111,394.30 × 442,787.87
  4. Step 4: Simplify right side
    805,357.82x = 492,111,914,827.14
  5. Step 5: Solve for x
    x = 492,111,914,827.14/805,357.82
  6. Step 6: Final answer
    x = 611,047.54

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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.