Home / 805,372.12-1,111,356.30-442,786.60

Finding the Fourth Proportional to 805,372.12, 1,111,356.30 and 442,786.60

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Solution

The fourth proportional to 805,372.12, 1,111,356.30 and 442,786.60 is: 611,014.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,372.12 : 1,111,356.30 = 442,786.60 : x
  2. Step 2: Convert to fraction form
    805,372.12/1,111,356.30 = 442,786.60/x
  3. Step 3: Cross multiply
    805,372.12x = 1,111,356.30 × 442,786.60
  4. Step 4: Simplify right side
    805,372.12x = 492,093,677,465.58
  5. Step 5: Solve for x
    x = 492,093,677,465.58/805,372.12
  6. Step 6: Final answer
    x = 611,014.05

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Double scale
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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.