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Finding the Fourth Proportional to 548,276.80, 822,415.20 and 296,334.40

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Solution

The fourth proportional to 548,276.80, 822,415.20 and 296,334.40 is: 444,501.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,276.80 : 822,415.20 = 296,334.40 : x
  2. Step 2: Convert to fraction form
    548,276.80/822,415.20 = 296,334.40/x
  3. Step 3: Cross multiply
    548,276.80x = 822,415.20 × 296,334.40
  4. Step 4: Simplify right side
    548,276.80x = 243,709,914,842.88
  5. Step 5: Solve for x
    x = 243,709,914,842.88/548,276.80
  6. Step 6: Final answer
    x = 444,501.60

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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.