Home / 711,812.42-982,301.26-389,522.60

Finding the Fourth Proportional to 711,812.42, 982,301.26 and 389,522.60

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Solution

The fourth proportional to 711,812.42, 982,301.26 and 389,522.60 is: 537,541.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,812.42 : 982,301.26 = 389,522.60 : x
  2. Step 2: Convert to fraction form
    711,812.42/982,301.26 = 389,522.60/x
  3. Step 3: Cross multiply
    711,812.42x = 982,301.26 × 389,522.60
  4. Step 4: Simplify right side
    711,812.42x = 382,628,540,778.48
  5. Step 5: Solve for x
    x = 382,628,540,778.48/711,812.42
  6. Step 6: Final answer
    x = 537,541.25

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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.