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Finding the Fourth Proportional to 673,628, 929,606.72 and 371,822.08

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Solution

The fourth proportional to 673,628, 929,606.72 and 371,822.08 is: 513,114.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,628 : 929,606.72 = 371,822.08 : x
  2. Step 2: Convert to fraction form
    673,628/929,606.72 = 371,822.08/x
  3. Step 3: Cross multiply
    673,628x = 929,606.72 × 371,822.08
  4. Step 4: Simplify right side
    673,628x = 345,648,304,212.38
  5. Step 5: Solve for x
    x = 345,648,304,212.38/673,628
  6. Step 6: Final answer
    x = 513,114.51

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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.