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Finding the Fourth Proportional to 478,103.04, 717,266.88 and 267,886.08

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Solution

The fourth proportional to 478,103.04, 717,266.88 and 267,886.08 is: 401,892.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,103.04 : 717,266.88 = 267,886.08 : x
  2. Step 2: Convert to fraction form
    478,103.04/717,266.88 = 267,886.08/x
  3. Step 3: Cross multiply
    478,103.04x = 717,266.88 × 267,886.08
  4. Step 4: Simplify right side
    478,103.04x = 192,145,812,797.03
  5. Step 5: Solve for x
    x = 192,145,812,797.03/478,103.04
  6. Step 6: Final answer
    x = 401,892.05

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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.