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Finding the Fourth Proportional to 455,816.25, 629,026.47 and 254,612.25

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Solution

The fourth proportional to 455,816.25, 629,026.47 and 254,612.25 is: 351,364.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,816.25 : 629,026.47 = 254,612.25 : x
  2. Step 2: Convert to fraction form
    455,816.25/629,026.47 = 254,612.25/x
  3. Step 3: Cross multiply
    455,816.25x = 629,026.47 × 254,612.25
  4. Step 4: Simplify right side
    455,816.25x = 160,157,844,836.26
  5. Step 5: Solve for x
    x = 160,157,844,836.26/455,816.25
  6. Step 6: Final answer
    x = 351,364.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.