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Finding the Fourth Proportional to 346,571.40, 519,857.10 and 325,576.20

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Solution

The fourth proportional to 346,571.40, 519,857.10 and 325,576.20 is: 488,364.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,571.40 : 519,857.10 = 325,576.20 : x
  2. Step 2: Convert to fraction form
    346,571.40/519,857.10 = 325,576.20/x
  3. Step 3: Cross multiply
    346,571.40x = 519,857.10 × 325,576.20
  4. Step 4: Simplify right side
    346,571.40x = 169,253,099,161.02
  5. Step 5: Solve for x
    x = 169,253,099,161.02/346,571.40
  6. Step 6: Final answer
    x = 488,364.30

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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.