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Finding the Fourth Proportional to 440,461.80, 660,692.70 and 366,978.60

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Solution

The fourth proportional to 440,461.80, 660,692.70 and 366,978.60 is: 550,467.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,461.80 : 660,692.70 = 366,978.60 : x
  2. Step 2: Convert to fraction form
    440,461.80/660,692.70 = 366,978.60/x
  3. Step 3: Cross multiply
    440,461.80x = 660,692.70 × 366,978.60
  4. Step 4: Simplify right side
    440,461.80x = 242,460,082,076.22
  5. Step 5: Solve for x
    x = 242,460,082,076.22/440,461.80
  6. Step 6: Final answer
    x = 550,467.90

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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.