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Finding the Fourth Proportional to 429,396.54, 592,555.95 and 238,405.02

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Solution

The fourth proportional to 429,396.54, 592,555.95 and 238,405.02 is: 328,992.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,396.54 : 592,555.95 = 238,405.02 : x
  2. Step 2: Convert to fraction form
    429,396.54/592,555.95 = 238,405.02/x
  3. Step 3: Cross multiply
    429,396.54x = 592,555.95 × 238,405.02
  4. Step 4: Simplify right side
    429,396.54x = 141,268,313,110.87
  5. Step 5: Solve for x
    x = 141,268,313,110.87/429,396.54
  6. Step 6: Final answer
    x = 328,992.67

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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.