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Finding the Fourth Proportional to 357,494.34, 538,174.20 and 325,677.88

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Solution

The fourth proportional to 357,494.34, 538,174.20 and 325,677.88 is: 490,277.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,494.34 : 538,174.20 = 325,677.88 : x
  2. Step 2: Convert to fraction form
    357,494.34/538,174.20 = 325,677.88/x
  3. Step 3: Cross multiply
    357,494.34x = 538,174.20 × 325,677.88
  4. Step 4: Simplify right side
    357,494.34x = 175,271,432,526.70
  5. Step 5: Solve for x
    x = 175,271,432,526.70/357,494.34
  6. Step 6: Final answer
    x = 490,277.50

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.