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Finding the Fourth Proportional to 611,456.70, 916,407.45 and 544,583.10

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Solution

The fourth proportional to 611,456.70, 916,407.45 and 544,583.10 is: 816,182.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,456.70 : 916,407.45 = 544,583.10 : x
  2. Step 2: Convert to fraction form
    611,456.70/916,407.45 = 544,583.10/x
  3. Step 3: Cross multiply
    611,456.70x = 916,407.45 × 544,583.10
  4. Step 4: Simplify right side
    611,456.70x = 499,060,009,984.10
  5. Step 5: Solve for x
    x = 499,060,009,984.10/611,456.70
  6. Step 6: Final answer
    x = 816,182.09

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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.