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Finding the Fourth Proportional to 529,615.80, 794,423.70 and 490,735.80

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Solution

The fourth proportional to 529,615.80, 794,423.70 and 490,735.80 is: 736,103.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,615.80 : 794,423.70 = 490,735.80 : x
  2. Step 2: Convert to fraction form
    529,615.80/794,423.70 = 490,735.80/x
  3. Step 3: Cross multiply
    529,615.80x = 794,423.70 × 490,735.80
  4. Step 4: Simplify right side
    529,615.80x = 389,852,149,958.46
  5. Step 5: Solve for x
    x = 389,852,149,958.46/529,615.80
  6. Step 6: Final answer
    x = 736,103.70

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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.