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Finding the Fourth Proportional to 531,961.20, 797,941.80 and 265,762.80

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Solution

The fourth proportional to 531,961.20, 797,941.80 and 265,762.80 is: 398,644.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,961.20 : 797,941.80 = 265,762.80 : x
  2. Step 2: Convert to fraction form
    531,961.20/797,941.80 = 265,762.80/x
  3. Step 3: Cross multiply
    531,961.20x = 797,941.80 × 265,762.80
  4. Step 4: Simplify right side
    531,961.20x = 212,063,247,005.04
  5. Step 5: Solve for x
    x = 212,063,247,005.04/531,961.20
  6. Step 6: Final answer
    x = 398,644.20

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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.