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Finding the Fourth Proportional to 346,431.20, 520,035.60 and 267,893.60

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Solution

The fourth proportional to 346,431.20, 520,035.60 and 267,893.60 is: 402,141.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,431.20 : 520,035.60 = 267,893.60 : x
  2. Step 2: Convert to fraction form
    346,431.20/520,035.60 = 267,893.60/x
  3. Step 3: Cross multiply
    346,431.20x = 520,035.60 × 267,893.60
  4. Step 4: Simplify right side
    346,431.20x = 139,314,209,012.16
  5. Step 5: Solve for x
    x = 139,314,209,012.16/346,431.20
  6. Step 6: Final answer
    x = 402,141.06

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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.