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Finding the Fourth Proportional to 469,691, 648,173.58 and 268,491.32

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Solution

The fourth proportional to 469,691, 648,173.58 and 268,491.32 is: 370,518.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,691 : 648,173.58 = 268,491.32 : x
  2. Step 2: Convert to fraction form
    469,691/648,173.58 = 268,491.32/x
  3. Step 3: Cross multiply
    469,691x = 648,173.58 × 268,491.32
  4. Step 4: Simplify right side
    469,691x = 174,028,980,083.33
  5. Step 5: Solve for x
    x = 174,028,980,083.33/469,691
  6. Step 6: Final answer
    x = 370,518.02

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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.