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Finding the Fourth Proportional to 622,388.10, 869,477.10 and 622,388.10

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Solution

The fourth proportional to 622,388.10, 869,477.10 and 622,388.10 is: 869,477.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,388.10 : 869,477.10 = 622,388.10 : x
  2. Step 2: Convert to fraction form
    622,388.10/869,477.10 = 622,388.10/x
  3. Step 3: Cross multiply
    622,388.10x = 869,477.10 × 622,388.10
  4. Step 4: Simplify right side
    622,388.10x = 541,152,200,262.51
  5. Step 5: Solve for x
    x = 541,152,200,262.51/622,388.10
  6. Step 6: Final answer
    x = 869,477.10

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.