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Finding the Fourth Proportional to 495,087.20, 742,630.80 and 295,632.80

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Solution

The fourth proportional to 495,087.20, 742,630.80 and 295,632.80 is: 443,449.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,087.20 : 742,630.80 = 295,632.80 : x
  2. Step 2: Convert to fraction form
    495,087.20/742,630.80 = 295,632.80/x
  3. Step 3: Cross multiply
    495,087.20x = 742,630.80 × 295,632.80
  4. Step 4: Simplify right side
    495,087.20x = 219,546,022,770.24
  5. Step 5: Solve for x
    x = 219,546,022,770.24/495,087.20
  6. Step 6: Final answer
    x = 443,449.20

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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.