Home / 805,637.76-1,111,757.90-443,061.60

Finding the Fourth Proportional to 805,637.76, 1,111,757.90 and 443,061.60

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Solution

The fourth proportional to 805,637.76, 1,111,757.90 and 443,061.60 is: 611,412.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,637.76 : 1,111,757.90 = 443,061.60 : x
  2. Step 2: Convert to fraction form
    805,637.76/1,111,757.90 = 443,061.60/x
  3. Step 3: Cross multiply
    805,637.76x = 1,111,757.90 × 443,061.60
  4. Step 4: Simplify right side
    805,637.76x = 492,577,231,771.33
  5. Step 5: Solve for x
    x = 492,577,231,771.33/805,637.76
  6. Step 6: Final answer
    x = 611,412.79

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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.