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Finding the Fourth Proportional to 346,627.20, 519,163.20 and 338,851.20

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Solution

The fourth proportional to 346,627.20, 519,163.20 and 338,851.20 is: 507,516.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,627.20 : 519,163.20 = 338,851.20 : x
  2. Step 2: Convert to fraction form
    346,627.20/519,163.20 = 338,851.20/x
  3. Step 3: Cross multiply
    346,627.20x = 519,163.20 × 338,851.20
  4. Step 4: Simplify right side
    346,627.20x = 175,919,073,315.84
  5. Step 5: Solve for x
    x = 175,919,073,315.84/346,627.20
  6. Step 6: Final answer
    x = 507,516.64

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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.