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Finding the Fourth Proportional to 353,426.66, 530,244.48 and 203,774.30

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Solution

The fourth proportional to 353,426.66, 530,244.48 and 203,774.30 is: 305,721.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,426.66 : 530,244.48 = 203,774.30 : x
  2. Step 2: Convert to fraction form
    353,426.66/530,244.48 = 203,774.30/x
  3. Step 3: Cross multiply
    353,426.66x = 530,244.48 × 203,774.30
  4. Step 4: Simplify right side
    353,426.66x = 108,050,197,740.86
  5. Step 5: Solve for x
    x = 108,050,197,740.86/353,426.66
  6. Step 6: Final answer
    x = 305,721.70

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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.