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Finding the Fourth Proportional to 397,402.32, 596,142.36 and 144,751.44

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Solution

The fourth proportional to 397,402.32, 596,142.36 and 144,751.44 is: 217,141.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,402.32 : 596,142.36 = 144,751.44 : x
  2. Step 2: Convert to fraction form
    397,402.32/596,142.36 = 144,751.44/x
  3. Step 3: Cross multiply
    397,402.32x = 596,142.36 × 144,751.44
  4. Step 4: Simplify right side
    397,402.32x = 86,292,465,055.00
  5. Step 5: Solve for x
    x = 86,292,465,055.00/397,402.32
  6. Step 6: Final answer
    x = 217,141.32

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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.