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Finding the Fourth Proportional to 347,010.40, 520,515.60 and 97,692.40

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Solution

The fourth proportional to 347,010.40, 520,515.60 and 97,692.40 is: 146,538.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,010.40 : 520,515.60 = 97,692.40 : x
  2. Step 2: Convert to fraction form
    347,010.40/520,515.60 = 97,692.40/x
  3. Step 3: Cross multiply
    347,010.40x = 520,515.60 × 97,692.40
  4. Step 4: Simplify right side
    347,010.40x = 50,850,418,201.44
  5. Step 5: Solve for x
    x = 50,850,418,201.44/347,010.40
  6. Step 6: Final answer
    x = 146,538.60

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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.