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Finding the Fourth Proportional to 706,676, 975,212.88 and 405,044.96

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Solution

The fourth proportional to 706,676, 975,212.88 and 405,044.96 is: 558,962.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    706,676 : 975,212.88 = 405,044.96 : x
  2. Step 2: Convert to fraction form
    706,676/975,212.88 = 405,044.96/x
  3. Step 3: Cross multiply
    706,676x = 975,212.88 × 405,044.96
  4. Step 4: Simplify right side
    706,676x = 395,005,061,971.09
  5. Step 5: Solve for x
    x = 395,005,061,971.09/706,676
  6. Step 6: Final answer
    x = 558,962.04

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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.