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Finding the Fourth Proportional to 352,709.40, 528,559.73 and 281,847.53

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Solution

The fourth proportional to 352,709.40, 528,559.73 and 281,847.53 is: 422,368.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,709.40 : 528,559.73 = 281,847.53 : x
  2. Step 2: Convert to fraction form
    352,709.40/528,559.73 = 281,847.53/x
  3. Step 3: Cross multiply
    352,709.40x = 528,559.73 × 281,847.53
  4. Step 4: Simplify right side
    352,709.40x = 148,973,255,327.06
  5. Step 5: Solve for x
    x = 148,973,255,327.06/352,709.40
  6. Step 6: Final answer
    x = 422,368.25

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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.