Home / 711,906.62-982,423.08-389,612.84

Finding the Fourth Proportional to 711,906.62, 982,423.08 and 389,612.84

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Solution

The fourth proportional to 711,906.62, 982,423.08 and 389,612.84 is: 537,661.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,906.62 : 982,423.08 = 389,612.84 : x
  2. Step 2: Convert to fraction form
    711,906.62/982,423.08 = 389,612.84/x
  3. Step 3: Cross multiply
    711,906.62x = 982,423.08 × 389,612.84
  4. Step 4: Simplify right side
    711,906.62x = 382,764,641,368.23
  5. Step 5: Solve for x
    x = 382,764,641,368.23/711,906.62
  6. Step 6: Final answer
    x = 537,661.30

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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.