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Finding the Fourth Proportional to 459,340.80, 688,311.36 and 234,692.16

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Solution

The fourth proportional to 459,340.80, 688,311.36 and 234,692.16 is: 351,680.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,340.80 : 688,311.36 = 234,692.16 : x
  2. Step 2: Convert to fraction form
    459,340.80/688,311.36 = 234,692.16/x
  3. Step 3: Cross multiply
    459,340.80x = 688,311.36 × 234,692.16
  4. Step 4: Simplify right side
    459,340.80x = 161,541,279,830.94
  5. Step 5: Solve for x
    x = 161,541,279,830.94/459,340.80
  6. Step 6: Final answer
    x = 351,680.67

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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.