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Finding the Fourth Proportional to 670,750.72, 925,697.28 and 384,363.52

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Solution

The fourth proportional to 670,750.72, 925,697.28 and 384,363.52 is: 530,456.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,750.72 : 925,697.28 = 384,363.52 : x
  2. Step 2: Convert to fraction form
    670,750.72/925,697.28 = 384,363.52/x
  3. Step 3: Cross multiply
    670,750.72x = 925,697.28 × 384,363.52
  4. Step 4: Simplify right side
    670,750.72x = 355,804,264,995.23
  5. Step 5: Solve for x
    x = 355,804,264,995.23/670,750.72
  6. Step 6: Final answer
    x = 530,456.78

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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.