Home / 711,786.15-982,264.85-389,496.29

Finding the Fourth Proportional to 711,786.15, 982,264.85 and 389,496.29

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Solution

The fourth proportional to 711,786.15, 982,264.85 and 389,496.29 is: 537,504.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,786.15 : 982,264.85 = 389,496.29 : x
  2. Step 2: Convert to fraction form
    711,786.15/982,264.85 = 389,496.29/x
  3. Step 3: Cross multiply
    711,786.15x = 982,264.85 × 389,496.29
  4. Step 4: Simplify right side
    711,786.15x = 382,588,509,474.21
  5. Step 5: Solve for x
    x = 382,588,509,474.21/711,786.15
  6. Step 6: Final answer
    x = 537,504.85

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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.