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Finding the Fourth Proportional to 502,579.35, 692,996.54 and 470,692.89

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Solution

The fourth proportional to 502,579.35, 692,996.54 and 470,692.89 is: 649,028.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,579.35 : 692,996.54 = 470,692.89 : x
  2. Step 2: Convert to fraction form
    502,579.35/692,996.54 = 470,692.89/x
  3. Step 3: Cross multiply
    502,579.35x = 692,996.54 × 470,692.89
  4. Step 4: Simplify right side
    502,579.35x = 326,188,541,819.14
  5. Step 5: Solve for x
    x = 326,188,541,819.14/502,579.35
  6. Step 6: Final answer
    x = 649,028.94

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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.