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Finding the Fourth Proportional to 404,906.40, 607,906.80 and 236,599.20

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Solution

The fourth proportional to 404,906.40, 607,906.80 and 236,599.20 is: 355,218.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,906.40 : 607,906.80 = 236,599.20 : x
  2. Step 2: Convert to fraction form
    404,906.40/607,906.80 = 236,599.20/x
  3. Step 3: Cross multiply
    404,906.40x = 607,906.80 × 236,599.20
  4. Step 4: Simplify right side
    404,906.40x = 143,830,262,554.56
  5. Step 5: Solve for x
    x = 143,830,262,554.56/404,906.40
  6. Step 6: Final answer
    x = 355,218.55

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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.