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Finding the Fourth Proportional to 1,680,461.60, 2,520,692.40 and 1,680,461.60

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Solution

The fourth proportional to 1,680,461.60, 2,520,692.40 and 1,680,461.60 is: 2,520,692.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,680,461.60 : 2,520,692.40 = 1,680,461.60 : x
  2. Step 2: Convert to fraction form
    1,680,461.60/2,520,692.40 = 1,680,461.60/x
  3. Step 3: Cross multiply
    1,680,461.60x = 2,520,692.40 × 1,680,461.60
  4. Step 4: Simplify right side
    1,680,461.60x = 4,235,926,783,611.84
  5. Step 5: Solve for x
    x = 4,235,926,783,611.84/1,680,461.60
  6. Step 6: Final answer
    x = 2,520,692.40

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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.