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Finding the Fourth Proportional to 368,996.70, 553,495.05 and 368,996.70

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Solution

The fourth proportional to 368,996.70, 553,495.05 and 368,996.70 is: 553,495.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,996.70 : 553,495.05 = 368,996.70 : x
  2. Step 2: Convert to fraction form
    368,996.70/553,495.05 = 368,996.70/x
  3. Step 3: Cross multiply
    368,996.70x = 553,495.05 × 368,996.70
  4. Step 4: Simplify right side
    368,996.70x = 204,237,846,916.34
  5. Step 5: Solve for x
    x = 204,237,846,916.34/368,996.70
  6. Step 6: Final answer
    x = 553,495.05

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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.