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Finding the Fourth Proportional to 469,401.80, 702,936.30 and 376,089.80

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Solution

The fourth proportional to 469,401.80, 702,936.30 and 376,089.80 is: 563,200.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,401.80 : 702,936.30 = 376,089.80 : x
  2. Step 2: Convert to fraction form
    469,401.80/702,936.30 = 376,089.80/x
  3. Step 3: Cross multiply
    469,401.80x = 702,936.30 × 376,089.80
  4. Step 4: Simplify right side
    469,401.80x = 264,367,172,479.74
  5. Step 5: Solve for x
    x = 264,367,172,479.74/469,401.80
  6. Step 6: Final answer
    x = 563,200.17

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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.