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Finding the Fourth Proportional to 674,354.43, 930,673.44 and 368,477.31

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Solution

The fourth proportional to 674,354.43, 930,673.44 and 368,477.31 is: 508,533.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,354.43 : 930,673.44 = 368,477.31 : x
  2. Step 2: Convert to fraction form
    674,354.43/930,673.44 = 368,477.31/x
  3. Step 3: Cross multiply
    674,354.43x = 930,673.44 × 368,477.31
  4. Step 4: Simplify right side
    674,354.43x = 342,932,045,659.65
  5. Step 5: Solve for x
    x = 342,932,045,659.65/674,354.43
  6. Step 6: Final answer
    x = 508,533.84

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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.