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Finding the Fourth Proportional to 706,779.04, 976,204.56 and 515,489.44

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Solution

The fourth proportional to 706,779.04, 976,204.56 and 515,489.44 is: 711,995.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    706,779.04 : 976,204.56 = 515,489.44 : x
  2. Step 2: Convert to fraction form
    706,779.04/976,204.56 = 515,489.44/x
  3. Step 3: Cross multiply
    706,779.04x = 976,204.56 × 515,489.44
  4. Step 4: Simplify right side
    706,779.04x = 503,223,141,959.85
  5. Step 5: Solve for x
    x = 503,223,141,959.85/706,779.04
  6. Step 6: Final answer
    x = 711,995.00

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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.