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Finding the Fourth Proportional to 478,849.32, 718,269.66 and 183,361.32

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Solution

The fourth proportional to 478,849.32, 718,269.66 and 183,361.32 is: 275,040.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,849.32 : 718,269.66 = 183,361.32 : x
  2. Step 2: Convert to fraction form
    478,849.32/718,269.66 = 183,361.32/x
  3. Step 3: Cross multiply
    478,849.32x = 718,269.66 × 183,361.32
  4. Step 4: Simplify right side
    478,849.32x = 131,702,872,973.55
  5. Step 5: Solve for x
    x = 131,702,872,973.55/478,849.32
  6. Step 6: Final answer
    x = 275,040.33

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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.