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Finding the Fourth Proportional to 673,620, 929,595.68 and 371,814.08

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Solution

The fourth proportional to 673,620, 929,595.68 and 371,814.08 is: 513,103.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,620 : 929,595.68 = 371,814.08 : x
  2. Step 2: Convert to fraction form
    673,620/929,595.68 = 371,814.08/x
  3. Step 3: Cross multiply
    673,620x = 929,595.68 × 371,814.08
  4. Step 4: Simplify right side
    673,620x = 345,636,762,531.17
  5. Step 5: Solve for x
    x = 345,636,762,531.17/673,620
  6. Step 6: Final answer
    x = 513,103.47

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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.