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Finding the Fourth Proportional to 404,272.80, 606,117.60 and 264,110.40

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Solution

The fourth proportional to 404,272.80, 606,117.60 and 264,110.40 is: 395,975.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,272.80 : 606,117.60 = 264,110.40 : x
  2. Step 2: Convert to fraction form
    404,272.80/606,117.60 = 264,110.40/x
  3. Step 3: Cross multiply
    404,272.80x = 606,117.60 × 264,110.40
  4. Step 4: Simplify right side
    404,272.80x = 160,081,961,783.04
  5. Step 5: Solve for x
    x = 160,081,961,783.04/404,272.80
  6. Step 6: Final answer
    x = 395,975.10

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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.