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Finding the Fourth Proportional to 404,130.80, 606,196.20 and 123,647.60

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Solution

The fourth proportional to 404,130.80, 606,196.20 and 123,647.60 is: 185,471.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,130.80 : 606,196.20 = 123,647.60 : x
  2. Step 2: Convert to fraction form
    404,130.80/606,196.20 = 123,647.60/x
  3. Step 3: Cross multiply
    404,130.80x = 606,196.20 × 123,647.60
  4. Step 4: Simplify right side
    404,130.80x = 74,954,705,259.12
  5. Step 5: Solve for x
    x = 74,954,705,259.12/404,130.80
  6. Step 6: Final answer
    x = 185,471.40

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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.