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Finding the Fourth Proportional to 314,036.80, 470,536.80 and 267,380.80

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Solution

The fourth proportional to 314,036.80, 470,536.80 and 267,380.80 is: 400,629.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,036.80 : 470,536.80 = 267,380.80 : x
  2. Step 2: Convert to fraction form
    314,036.80/470,536.80 = 267,380.80/x
  3. Step 3: Cross multiply
    314,036.80x = 470,536.80 × 267,380.80
  4. Step 4: Simplify right side
    314,036.80x = 125,812,506,013.44
  5. Step 5: Solve for x
    x = 125,812,506,013.44/314,036.80
  6. Step 6: Final answer
    x = 400,629.82

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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.