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Finding the Fourth Proportional to 469,428.80, 702,976.80 and 376,116.80

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Solution

The fourth proportional to 469,428.80, 702,976.80 and 376,116.80 is: 563,240.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,428.80 : 702,976.80 = 376,116.80 : x
  2. Step 2: Convert to fraction form
    469,428.80/702,976.80 = 376,116.80/x
  3. Step 3: Cross multiply
    469,428.80x = 702,976.80 × 376,116.80
  4. Step 4: Simplify right side
    469,428.80x = 264,401,384,490.24
  5. Step 5: Solve for x
    x = 264,401,384,490.24/469,428.80
  6. Step 6: Final answer
    x = 563,240.65

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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.