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Finding the Fourth Proportional to 317,157.05, 437,253.32 and 251,962.19

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Solution

The fourth proportional to 317,157.05, 437,253.32 and 251,962.19 is: 347,371.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,157.05 : 437,253.32 = 251,962.19 : x
  2. Step 2: Convert to fraction form
    317,157.05/437,253.32 = 251,962.19/x
  3. Step 3: Cross multiply
    317,157.05x = 437,253.32 × 251,962.19
  4. Step 4: Simplify right side
    317,157.05x = 110,171,300,645.89
  5. Step 5: Solve for x
    x = 110,171,300,645.89/317,157.05
  6. Step 6: Final answer
    x = 347,371.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.