Home / 711,824.40-982,317.84-389,534.64

Finding the Fourth Proportional to 711,824.40, 982,317.84 and 389,534.64

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Solution

The fourth proportional to 711,824.40, 982,317.84 and 389,534.64 is: 537,557.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,824.40 : 982,317.84 = 389,534.64 : x
  2. Step 2: Convert to fraction form
    711,824.40/982,317.84 = 389,534.64/x
  3. Step 3: Cross multiply
    711,824.40x = 982,317.84 × 389,534.64
  4. Step 4: Simplify right side
    711,824.40x = 382,646,826,169.98
  5. Step 5: Solve for x
    x = 382,646,826,169.98/711,824.40
  6. Step 6: Final answer
    x = 537,557.90

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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.