Home / 811,495.67-1,119,947.21-467,344.49

Finding the Fourth Proportional to 811,495.67, 1,119,947.21 and 467,344.49

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Solution

The fourth proportional to 811,495.67, 1,119,947.21 and 467,344.49 is: 644,983.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,495.67 : 1,119,947.21 = 467,344.49 : x
  2. Step 2: Convert to fraction form
    811,495.67/1,119,947.21 = 467,344.49/x
  3. Step 3: Cross multiply
    811,495.67x = 1,119,947.21 × 467,344.49
  4. Step 4: Simplify right side
    811,495.67x = 523,401,151,500.46
  5. Step 5: Solve for x
    x = 523,401,151,500.46/811,495.67
  6. Step 6: Final answer
    x = 644,983.30

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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.