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Finding the Fourth Proportional to 404,607.80, 606,911.70 and 194,137.40

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Solution

The fourth proportional to 404,607.80, 606,911.70 and 194,137.40 is: 291,206.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,607.80 : 606,911.70 = 194,137.40 : x
  2. Step 2: Convert to fraction form
    404,607.80/606,911.70 = 194,137.40/x
  3. Step 3: Cross multiply
    404,607.80x = 606,911.70 × 194,137.40
  4. Step 4: Simplify right side
    404,607.80x = 117,824,259,467.58
  5. Step 5: Solve for x
    x = 117,824,259,467.58/404,607.80
  6. Step 6: Final answer
    x = 291,206.10

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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.