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Finding the Fourth Proportional to 706,978.44, 1,061,078.81 and 370,254.69

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Solution

The fourth proportional to 706,978.44, 1,061,078.81 and 370,254.69 is: 555,702.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    706,978.44 : 1,061,078.81 = 370,254.69 : x
  2. Step 2: Convert to fraction form
    706,978.44/1,061,078.81 = 370,254.69/x
  3. Step 3: Cross multiply
    706,978.44x = 1,061,078.81 × 370,254.69
  4. Step 4: Simplify right side
    706,978.44x = 392,869,404,010.85
  5. Step 5: Solve for x
    x = 392,869,404,010.85/706,978.44
  6. Step 6: Final answer
    x = 555,702.10

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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.