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Finding the Fourth Proportional to 702,330.30, 969,213.87 and 380,045.88

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Solution

The fourth proportional to 702,330.30, 969,213.87 and 380,045.88 is: 524,462.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,330.30 : 969,213.87 = 380,045.88 : x
  2. Step 2: Convert to fraction form
    702,330.30/969,213.87 = 380,045.88/x
  3. Step 3: Cross multiply
    702,330.30x = 969,213.87 × 380,045.88
  4. Step 4: Simplify right side
    702,330.30x = 368,345,738,132.36
  5. Step 5: Solve for x
    x = 368,345,738,132.36/702,330.30
  6. Step 6: Final answer
    x = 524,462.26

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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.