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Finding the Fourth Proportional to 303,467.10, 455,200.65 and 190,781.93

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Solution

The fourth proportional to 303,467.10, 455,200.65 and 190,781.93 is: 286,172.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,467.10 : 455,200.65 = 190,781.93 : x
  2. Step 2: Convert to fraction form
    303,467.10/455,200.65 = 190,781.93/x
  3. Step 3: Cross multiply
    303,467.10x = 455,200.65 × 190,781.93
  4. Step 4: Simplify right side
    303,467.10x = 86,844,056,268.25
  5. Step 5: Solve for x
    x = 86,844,056,268.25/303,467.10
  6. Step 6: Final answer
    x = 286,172.89

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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.