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Finding the Fourth Proportional to 472,936.94, 652,666.87 and 258,090.87

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Solution

The fourth proportional to 472,936.94, 652,666.87 and 258,090.87 is: 356,172.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,936.94 : 652,666.87 = 258,090.87 : x
  2. Step 2: Convert to fraction form
    472,936.94/652,666.87 = 258,090.87/x
  3. Step 3: Cross multiply
    472,936.94x = 652,666.87 × 258,090.87
  4. Step 4: Simplify right side
    472,936.94x = 168,447,361,616.83
  5. Step 5: Solve for x
    x = 168,447,361,616.83/472,936.94
  6. Step 6: Final answer
    x = 356,172.98

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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.