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Finding the Fourth Proportional to 463,555.56, 695,441.72 and 143,690.64

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Solution

The fourth proportional to 463,555.56, 695,441.72 and 143,690.64 is: 215,569.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,555.56 : 695,441.72 = 143,690.64 : x
  2. Step 2: Convert to fraction form
    463,555.56/695,441.72 = 143,690.64/x
  3. Step 3: Cross multiply
    463,555.56x = 695,441.72 × 143,690.64
  4. Step 4: Simplify right side
    463,555.56x = 99,928,465,829.50
  5. Step 5: Solve for x
    x = 99,928,465,829.50/463,555.56
  6. Step 6: Final answer
    x = 215,569.56

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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.