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Finding the Fourth Proportional to 304,043.40, 456,065.10 and 178,072.20

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Solution

The fourth proportional to 304,043.40, 456,065.10 and 178,072.20 is: 267,108.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,043.40 : 456,065.10 = 178,072.20 : x
  2. Step 2: Convert to fraction form
    304,043.40/456,065.10 = 178,072.20/x
  3. Step 3: Cross multiply
    304,043.40x = 456,065.10 × 178,072.20
  4. Step 4: Simplify right side
    304,043.40x = 81,212,515,700.22
  5. Step 5: Solve for x
    x = 81,212,515,700.22/304,043.40
  6. Step 6: Final answer
    x = 267,108.30

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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.