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Finding the Fourth Proportional to 404,999.20, 607,498.80 and 375,474.70

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Solution

The fourth proportional to 404,999.20, 607,498.80 and 375,474.70 is: 563,212.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,999.20 : 607,498.80 = 375,474.70 : x
  2. Step 2: Convert to fraction form
    404,999.20/607,498.80 = 375,474.70/x
  3. Step 3: Cross multiply
    404,999.20x = 607,498.80 × 375,474.70
  4. Step 4: Simplify right side
    404,999.20x = 228,100,429,680.36
  5. Step 5: Solve for x
    x = 228,100,429,680.36/404,999.20
  6. Step 6: Final answer
    x = 563,212.05

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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.