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Finding the Fourth Proportional to 607,259.43, 909,892.14 and 207,682.20

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Solution

The fourth proportional to 607,259.43, 909,892.14 and 207,682.20 is: 311,182.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,259.43 : 909,892.14 = 207,682.20 : x
  2. Step 2: Convert to fraction form
    607,259.43/909,892.14 = 207,682.20/x
  3. Step 3: Cross multiply
    607,259.43x = 909,892.14 × 207,682.20
  4. Step 4: Simplify right side
    607,259.43x = 188,968,401,397.91
  5. Step 5: Solve for x
    x = 188,968,401,397.91/607,259.43
  6. Step 6: Final answer
    x = 311,182.33

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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.