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Finding the Fourth Proportional to 404,786.10, 607,179.15 and 124,266.90

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Solution

The fourth proportional to 404,786.10, 607,179.15 and 124,266.90 is: 186,400.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,786.10 : 607,179.15 = 124,266.90 : x
  2. Step 2: Convert to fraction form
    404,786.10/607,179.15 = 124,266.90/x
  3. Step 3: Cross multiply
    404,786.10x = 607,179.15 × 124,266.90
  4. Step 4: Simplify right side
    404,786.10x = 75,452,270,715.14
  5. Step 5: Solve for x
    x = 75,452,270,715.14/404,786.10
  6. Step 6: Final answer
    x = 186,400.35

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1.5x scale

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.