Home / 806,000.21-1,112,280.28-443,416.29

Finding the Fourth Proportional to 806,000.21, 1,112,280.28 and 443,416.29

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Solution

The fourth proportional to 806,000.21, 1,112,280.28 and 443,416.29 is: 611,914.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,000.21 : 1,112,280.28 = 443,416.29 : x
  2. Step 2: Convert to fraction form
    806,000.21/1,112,280.28 = 443,416.29/x
  3. Step 3: Cross multiply
    806,000.21x = 1,112,280.28 × 443,416.29
  4. Step 4: Simplify right side
    806,000.21x = 493,203,189,636.36
  5. Step 5: Solve for x
    x = 493,203,189,636.36/806,000.21
  6. Step 6: Final answer
    x = 611,914.47

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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.