Home / 711,793.09-982,274.46-389,503.24

Finding the Fourth Proportional to 711,793.09, 982,274.46 and 389,503.24

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Solution

The fourth proportional to 711,793.09, 982,274.46 and 389,503.24 is: 537,514.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,793.09 : 982,274.46 = 389,503.24 : x
  2. Step 2: Convert to fraction form
    711,793.09/982,274.46 = 389,503.24/x
  3. Step 3: Cross multiply
    711,793.09x = 982,274.46 × 389,503.24
  4. Step 4: Simplify right side
    711,793.09x = 382,599,084,739.25
  5. Step 5: Solve for x
    x = 382,599,084,739.25/711,793.09
  6. Step 6: Final answer
    x = 537,514.47

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Double scale
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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.