Home / 805,649.81-1,111,774.46-443,073.60

Finding the Fourth Proportional to 805,649.81, 1,111,774.46 and 443,073.60

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Solution

The fourth proportional to 805,649.81, 1,111,774.46 and 443,073.60 is: 611,429.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,649.81 : 1,111,774.46 = 443,073.60 : x
  2. Step 2: Convert to fraction form
    805,649.81/1,111,774.46 = 443,073.60/x
  3. Step 3: Cross multiply
    805,649.81x = 1,111,774.46 × 443,073.60
  4. Step 4: Simplify right side
    805,649.81x = 492,597,910,164.89
  5. Step 5: Solve for x
    x = 492,597,910,164.89/805,649.81
  6. Step 6: Final answer
    x = 611,429.32

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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.