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Finding the Fourth Proportional to 469,705, 648,192.94 and 268,505.32

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Solution

The fourth proportional to 469,705, 648,192.94 and 268,505.32 is: 370,537.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,705 : 648,192.94 = 268,505.32 : x
  2. Step 2: Convert to fraction form
    469,705/648,192.94 = 268,505.32/x
  3. Step 3: Cross multiply
    469,705x = 648,192.94 × 268,505.32
  4. Step 4: Simplify right side
    469,705x = 174,043,252,776.44
  5. Step 5: Solve for x
    x = 174,043,252,776.44/469,705
  6. Step 6: Final answer
    x = 370,537.36

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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.