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Finding the Fourth Proportional to 567,145.03, 782,715.29 and 423,655.96

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Solution

The fourth proportional to 567,145.03, 782,715.29 and 423,655.96 is: 584,686.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,145.03 : 782,715.29 = 423,655.96 : x
  2. Step 2: Convert to fraction form
    567,145.03/782,715.29 = 423,655.96/x
  3. Step 3: Cross multiply
    567,145.03x = 782,715.29 × 423,655.96
  4. Step 4: Simplify right side
    567,145.03x = 331,601,997,591.63
  5. Step 5: Solve for x
    x = 331,601,997,591.63/567,145.03
  6. Step 6: Final answer
    x = 584,686.42

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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.