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Finding the Fourth Proportional to 711,608.57, 982,030.89 and 389,324.06

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Solution

The fourth proportional to 711,608.57, 982,030.89 and 389,324.06 is: 537,273.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,608.57 : 982,030.89 = 389,324.06 : x
  2. Step 2: Convert to fraction form
    711,608.57/982,030.89 = 389,324.06/x
  3. Step 3: Cross multiply
    711,608.57x = 982,030.89 × 389,324.06
  4. Step 4: Simplify right side
    711,608.57x = 382,328,248,230.06
  5. Step 5: Solve for x
    x = 382,328,248,230.06/711,608.57
  6. Step 6: Final answer
    x = 537,273.25

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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.