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Finding the Fourth Proportional to 463,810.55, 695,815.14 and 143,955.72

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Solution

The fourth proportional to 463,810.55, 695,815.14 and 143,955.72 is: 215,964.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,810.55 : 695,815.14 = 143,955.72 : x
  2. Step 2: Convert to fraction form
    463,810.55/695,815.14 = 143,955.72/x
  3. Step 3: Cross multiply
    463,810.55x = 695,815.14 × 143,955.72
  4. Step 4: Simplify right side
    463,810.55x = 100,166,569,465.60
  5. Step 5: Solve for x
    x = 100,166,569,465.60/463,810.55
  6. Step 6: Final answer
    x = 215,964.41

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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.