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Finding the Fourth Proportional to 353,999.90, 530,416.65 and 301,511.90

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Solution

The fourth proportional to 353,999.90, 530,416.65 and 301,511.90 is: 451,771.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,999.90 : 530,416.65 = 301,511.90 : x
  2. Step 2: Convert to fraction form
    353,999.90/530,416.65 = 301,511.90/x
  3. Step 3: Cross multiply
    353,999.90x = 530,416.65 × 301,511.90
  4. Step 4: Simplify right side
    353,999.90x = 159,926,931,933.14
  5. Step 5: Solve for x
    x = 159,926,931,933.14/353,999.90
  6. Step 6: Final answer
    x = 451,771.12

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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.