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Finding the Fourth Proportional to 543,049.90, 749,372.84 and 301,317.14

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Solution

The fourth proportional to 543,049.90, 749,372.84 and 301,317.14 is: 415,797.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,049.90 : 749,372.84 = 301,317.14 : x
  2. Step 2: Convert to fraction form
    543,049.90/749,372.84 = 301,317.14/x
  3. Step 3: Cross multiply
    543,049.90x = 749,372.84 × 301,317.14
  4. Step 4: Simplify right side
    543,049.90x = 225,798,880,942.48
  5. Step 5: Solve for x
    x = 225,798,880,942.48/543,049.90
  6. Step 6: Final answer
    x = 415,797.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.