Home / 805,606.20-1,111,765.08-443,058.08

Finding the Fourth Proportional to 805,606.20, 1,111,765.08 and 443,058.08

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Solution

The fourth proportional to 805,606.20, 1,111,765.08 and 443,058.08 is: 611,435.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,606.20 : 1,111,765.08 = 443,058.08 : x
  2. Step 2: Convert to fraction form
    805,606.20/1,111,765.08 = 443,058.08/x
  3. Step 3: Cross multiply
    805,606.20x = 1,111,765.08 × 443,058.08
  4. Step 4: Simplify right side
    805,606.20x = 492,576,501,755.85
  5. Step 5: Solve for x
    x = 492,576,501,755.85/805,606.20
  6. Step 6: Final answer
    x = 611,435.84

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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.