Home / 711,795.17-982,277.29-389,505.29

Finding the Fourth Proportional to 711,795.17, 982,277.29 and 389,505.29

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Solution

The fourth proportional to 711,795.17, 982,277.29 and 389,505.29 is: 537,517.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,795.17 : 982,277.29 = 389,505.29 : x
  2. Step 2: Convert to fraction form
    711,795.17/982,277.29 = 389,505.29/x
  3. Step 3: Cross multiply
    711,795.17x = 982,277.29 × 389,505.29
  4. Step 4: Simplify right side
    711,795.17x = 382,602,198,754.34
  5. Step 5: Solve for x
    x = 382,602,198,754.34/711,795.17
  6. Step 6: Final answer
    x = 537,517.27

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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.