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Finding the Fourth Proportional to 512,159.04, 706,379.76 and 328,415.13

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Solution

The fourth proportional to 512,159.04, 706,379.76 and 328,415.13 is: 452,956.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,159.04 : 706,379.76 = 328,415.13 : x
  2. Step 2: Convert to fraction form
    512,159.04/706,379.76 = 328,415.13/x
  3. Step 3: Cross multiply
    512,159.04x = 706,379.76 × 328,415.13
  4. Step 4: Simplify right side
    512,159.04x = 231,985,800,709.77
  5. Step 5: Solve for x
    x = 231,985,800,709.77/512,159.04
  6. Step 6: Final answer
    x = 452,956.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.