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Finding the Fourth Proportional to 353,874.40, 530,811.60 and 348,042.40

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Solution

The fourth proportional to 353,874.40, 530,811.60 and 348,042.40 is: 522,063.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,874.40 : 530,811.60 = 348,042.40 : x
  2. Step 2: Convert to fraction form
    353,874.40/530,811.60 = 348,042.40/x
  3. Step 3: Cross multiply
    353,874.40x = 530,811.60 × 348,042.40
  4. Step 4: Simplify right side
    353,874.40x = 184,744,943,211.84
  5. Step 5: Solve for x
    x = 184,744,943,211.84/353,874.40
  6. Step 6: Final answer
    x = 522,063.60

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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.