Home / 644,325.10-966,487.65-405,176.65

Finding the Fourth Proportional to 644,325.10, 966,487.65 and 405,176.65

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Solution

The fourth proportional to 644,325.10, 966,487.65 and 405,176.65 is: 607,764.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,325.10 : 966,487.65 = 405,176.65 : x
  2. Step 2: Convert to fraction form
    644,325.10/966,487.65 = 405,176.65/x
  3. Step 3: Cross multiply
    644,325.10x = 966,487.65 × 405,176.65
  4. Step 4: Simplify right side
    644,325.10x = 391,598,228,293.37
  5. Step 5: Solve for x
    x = 391,598,228,293.37/644,325.10
  6. Step 6: Final answer
    x = 607,764.98

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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.