Home / 711,814.96-982,304.72-389,525.12

Finding the Fourth Proportional to 711,814.96, 982,304.72 and 389,525.12

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Solution

The fourth proportional to 711,814.96, 982,304.72 and 389,525.12 is: 537,544.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,814.96 : 982,304.72 = 389,525.12 : x
  2. Step 2: Convert to fraction form
    711,814.96/982,304.72 = 389,525.12/x
  3. Step 3: Cross multiply
    711,814.96x = 982,304.72 × 389,525.12
  4. Step 4: Simplify right side
    711,814.96x = 382,632,363,934.57
  5. Step 5: Solve for x
    x = 382,632,363,934.57/711,814.96
  6. Step 6: Final answer
    x = 537,544.71

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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.