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Finding the Fourth Proportional to 606,645.45, 909,968.18 and 606,645.45

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Solution

The fourth proportional to 606,645.45, 909,968.18 and 606,645.45 is: 909,968.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,645.45 : 909,968.18 = 606,645.45 : x
  2. Step 2: Convert to fraction form
    606,645.45/909,968.18 = 606,645.45/x
  3. Step 3: Cross multiply
    606,645.45x = 909,968.18 × 606,645.45
  4. Step 4: Simplify right side
    606,645.45x = 552,028,053,008.55
  5. Step 5: Solve for x
    x = 552,028,053,008.55/606,645.45
  6. Step 6: Final answer
    x = 909,968.18

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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.