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Finding the Fourth Proportional to 384,010.04, 529,930.14 and 211,929.60

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Solution

The fourth proportional to 384,010.04, 529,930.14 and 211,929.60 is: 292,460.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,010.04 : 529,930.14 = 211,929.60 : x
  2. Step 2: Convert to fraction form
    384,010.04/529,930.14 = 211,929.60/x
  3. Step 3: Cross multiply
    384,010.04x = 529,930.14 × 211,929.60
  4. Step 4: Simplify right side
    384,010.04x = 112,307,882,598.14
  5. Step 5: Solve for x
    x = 112,307,882,598.14/384,010.04
  6. Step 6: Final answer
    x = 292,460.80

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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.