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Finding the Fourth Proportional to 304,080.40, 455,602.20 and 251,203.60

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Solution

The fourth proportional to 304,080.40, 455,602.20 and 251,203.60 is: 376,377.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,080.40 : 455,602.20 = 251,203.60 : x
  2. Step 2: Convert to fraction form
    304,080.40/455,602.20 = 251,203.60/x
  3. Step 3: Cross multiply
    304,080.40x = 455,602.20 × 251,203.60
  4. Step 4: Simplify right side
    304,080.40x = 114,448,912,807.92
  5. Step 5: Solve for x
    x = 114,448,912,807.92/304,080.40
  6. Step 6: Final answer
    x = 376,377.15

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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.