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Finding the Fourth Proportional to 303,608.10, 455,412.15 and 294,860.10

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Solution

The fourth proportional to 303,608.10, 455,412.15 and 294,860.10 is: 442,290.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,608.10 : 455,412.15 = 294,860.10 : x
  2. Step 2: Convert to fraction form
    303,608.10/455,412.15 = 294,860.10/x
  3. Step 3: Cross multiply
    303,608.10x = 455,412.15 × 294,860.10
  4. Step 4: Simplify right side
    303,608.10x = 134,282,872,090.22
  5. Step 5: Solve for x
    x = 134,282,872,090.22/303,608.10
  6. Step 6: Final answer
    x = 442,290.15

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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.