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Finding the Fourth Proportional to 401,032.40, 601,548.60 and 345,736.40

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Solution

The fourth proportional to 401,032.40, 601,548.60 and 345,736.40 is: 518,604.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,032.40 : 601,548.60 = 345,736.40 : x
  2. Step 2: Convert to fraction form
    401,032.40/601,548.60 = 345,736.40/x
  3. Step 3: Cross multiply
    401,032.40x = 601,548.60 × 345,736.40
  4. Step 4: Simplify right side
    401,032.40x = 207,977,247,389.04
  5. Step 5: Solve for x
    x = 207,977,247,389.04/401,032.40
  6. Step 6: Final answer
    x = 518,604.60

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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.