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Finding the Fourth Proportional to 514,622.40, 771,935.36 and 364,408.28

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Solution

The fourth proportional to 514,622.40, 771,935.36 and 364,408.28 is: 546,613.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,622.40 : 771,935.36 = 364,408.28 : x
  2. Step 2: Convert to fraction form
    514,622.40/771,935.36 = 364,408.28/x
  3. Step 3: Cross multiply
    514,622.40x = 771,935.36 × 364,408.28
  4. Step 4: Simplify right side
    514,622.40x = 281,299,636,808.78
  5. Step 5: Solve for x
    x = 281,299,636,808.78/514,622.40
  6. Step 6: Final answer
    x = 546,613.67

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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.