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Finding the Fourth Proportional to 548,267.40, 822,401.10 and 174,328.20

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Solution

The fourth proportional to 548,267.40, 822,401.10 and 174,328.20 is: 261,492.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,267.40 : 822,401.10 = 174,328.20 : x
  2. Step 2: Convert to fraction form
    548,267.40/822,401.10 = 174,328.20/x
  3. Step 3: Cross multiply
    548,267.40x = 822,401.10 × 174,328.20
  4. Step 4: Simplify right side
    548,267.40x = 143,367,703,441.02
  5. Step 5: Solve for x
    x = 143,367,703,441.02/548,267.40
  6. Step 6: Final answer
    x = 261,492.30

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Double scale
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Similar ratio
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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.