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Finding the Fourth Proportional to 385,893.07, 578,530.50 and 183,387.54

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Solution

The fourth proportional to 385,893.07, 578,530.50 and 183,387.54 is: 274,934.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,893.07 : 578,530.50 = 183,387.54 : x
  2. Step 2: Convert to fraction form
    385,893.07/578,530.50 = 183,387.54/x
  3. Step 3: Cross multiply
    385,893.07x = 578,530.50 × 183,387.54
  4. Step 4: Simplify right side
    385,893.07x = 106,095,285,209.97
  5. Step 5: Solve for x
    x = 106,095,285,209.97/385,893.07
  6. Step 6: Final answer
    x = 274,934.41

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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.