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Finding the Fourth Proportional to 611,476.20, 916,436.70 and 544,602.60

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Solution

The fourth proportional to 611,476.20, 916,436.70 and 544,602.60 is: 816,211.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,476.20 : 916,436.70 = 544,602.60 : x
  2. Step 2: Convert to fraction form
    611,476.20/916,436.70 = 544,602.60/x
  3. Step 3: Cross multiply
    611,476.20x = 916,436.70 × 544,602.60
  4. Step 4: Simplify right side
    611,476.20x = 499,093,809,555.42
  5. Step 5: Solve for x
    x = 499,093,809,555.42/611,476.20
  6. Step 6: Final answer
    x = 816,211.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.