Home / 711,979.53-982,528.11-385,292.28

Finding the Fourth Proportional to 711,979.53, 982,528.11 and 385,292.28

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Solution

The fourth proportional to 711,979.53, 982,528.11 and 385,292.28 is: 531,701.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,979.53 : 982,528.11 = 385,292.28 : x
  2. Step 2: Convert to fraction form
    711,979.53/982,528.11 = 385,292.28/x
  3. Step 3: Cross multiply
    711,979.53x = 982,528.11 × 385,292.28
  4. Step 4: Simplify right side
    711,979.53x = 378,560,495,665.99
  5. Step 5: Solve for x
    x = 378,560,495,665.99/711,979.53
  6. Step 6: Final answer
    x = 531,701.38

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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.