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Finding the Fourth Proportional to 559,453.05, 837,211.28 and 512,213.85

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Solution

The fourth proportional to 559,453.05, 837,211.28 and 512,213.85 is: 766,518.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,453.05 : 837,211.28 = 512,213.85 : x
  2. Step 2: Convert to fraction form
    559,453.05/837,211.28 = 512,213.85/x
  3. Step 3: Cross multiply
    559,453.05x = 837,211.28 × 512,213.85
  4. Step 4: Simplify right side
    559,453.05x = 428,831,210,431.16
  5. Step 5: Solve for x
    x = 428,831,210,431.16/559,453.05
  6. Step 6: Final answer
    x = 766,518.67

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1.5x scale

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.