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Finding the Fourth Proportional to 425,396.61, 637,493.47 and 235,940.45

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Solution

The fourth proportional to 425,396.61, 637,493.47 and 235,940.45 is: 353,577.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,396.61 : 637,493.47 = 235,940.45 : x
  2. Step 2: Convert to fraction form
    425,396.61/637,493.47 = 235,940.45/x
  3. Step 3: Cross multiply
    425,396.61x = 637,493.47 × 235,940.45
  4. Step 4: Simplify right side
    425,396.61x = 150,410,492,406.54
  5. Step 5: Solve for x
    x = 150,410,492,406.54/425,396.61
  6. Step 6: Final answer
    x = 353,577.08

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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.