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Finding the Fourth Proportional to 711,296.54, 980,436.96 and 555,977.32

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Solution

The fourth proportional to 711,296.54, 980,436.96 and 555,977.32 is: 766,348.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,296.54 : 980,436.96 = 555,977.32 : x
  2. Step 2: Convert to fraction form
    711,296.54/980,436.96 = 555,977.32/x
  3. Step 3: Cross multiply
    711,296.54x = 980,436.96 × 555,977.32
  4. Step 4: Simplify right side
    711,296.54x = 545,100,710,998.66
  5. Step 5: Solve for x
    x = 545,100,710,998.66/711,296.54
  6. Step 6: Final answer
    x = 766,348.04

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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.