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Finding the Fourth Proportional to 471,630, 707,000.28 and 234,748.74

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Solution

The fourth proportional to 471,630, 707,000.28 and 234,748.74 is: 351,901.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    471,630 : 707,000.28 = 234,748.74 : x
  2. Step 2: Convert to fraction form
    471,630/707,000.28 = 234,748.74/x
  3. Step 3: Cross multiply
    471,630x = 707,000.28 × 234,748.74
  4. Step 4: Simplify right side
    471,630x = 165,967,424,909.65
  5. Step 5: Solve for x
    x = 165,967,424,909.65/471,630
  6. Step 6: Final answer
    x = 351,901.76

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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.