Home / 714,716.31-986,770.07-443,074.51

Finding the Fourth Proportional to 714,716.31, 986,770.07 and 443,074.51

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Solution

The fourth proportional to 714,716.31, 986,770.07 and 443,074.51 is: 611,728.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,716.31 : 986,770.07 = 443,074.51 : x
  2. Step 2: Convert to fraction form
    714,716.31/986,770.07 = 443,074.51/x
  3. Step 3: Cross multiply
    714,716.31x = 986,770.07 × 443,074.51
  4. Step 4: Simplify right side
    714,716.31x = 437,212,661,623.10
  5. Step 5: Solve for x
    x = 437,212,661,623.10/714,716.31
  6. Step 6: Final answer
    x = 611,728.96

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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.