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Finding the Fourth Proportional to 346,513.20, 520,158.60 and 267,975.60

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Solution

The fourth proportional to 346,513.20, 520,158.60 and 267,975.60 is: 402,264.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,513.20 : 520,158.60 = 267,975.60 : x
  2. Step 2: Convert to fraction form
    346,513.20/520,158.60 = 267,975.60/x
  3. Step 3: Cross multiply
    346,513.20x = 520,158.60 × 267,975.60
  4. Step 4: Simplify right side
    346,513.20x = 139,389,812,930.16
  5. Step 5: Solve for x
    x = 139,389,812,930.16/346,513.20
  6. Step 6: Final answer
    x = 402,264.08

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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.