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Finding the Fourth Proportional to 514,624.40, 771,938.36 and 364,410.28

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Solution

The fourth proportional to 514,624.40, 771,938.36 and 364,410.28 is: 546,616.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,624.40 : 771,938.36 = 364,410.28 : x
  2. Step 2: Convert to fraction form
    514,624.40/771,938.36 = 364,410.28/x
  3. Step 3: Cross multiply
    514,624.40x = 771,938.36 × 364,410.28
  4. Step 4: Simplify right side
    514,624.40x = 281,302,273,910.34
  5. Step 5: Solve for x
    x = 281,302,273,910.34/514,624.40
  6. Step 6: Final answer
    x = 546,616.67

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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.