Home / 805,803.05-1,111,985.02-443,226.90

Finding the Fourth Proportional to 805,803.05, 1,111,985.02 and 443,226.90

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Solution

The fourth proportional to 805,803.05, 1,111,985.02 and 443,226.90 is: 611,640.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,803.05 : 1,111,985.02 = 443,226.90 : x
  2. Step 2: Convert to fraction form
    805,803.05/1,111,985.02 = 443,226.90/x
  3. Step 3: Cross multiply
    805,803.05x = 1,111,985.02 × 443,226.90
  4. Step 4: Simplify right side
    805,803.05x = 492,861,676,033.08
  5. Step 5: Solve for x
    x = 492,861,676,033.08/805,803.05
  6. Step 6: Final answer
    x = 611,640.37

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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.