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Finding the Fourth Proportional to 531,938.70, 797,908.05 and 265,740.30

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Solution

The fourth proportional to 531,938.70, 797,908.05 and 265,740.30 is: 398,610.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,938.70 : 797,908.05 = 265,740.30 : x
  2. Step 2: Convert to fraction form
    531,938.70/797,908.05 = 265,740.30/x
  3. Step 3: Cross multiply
    531,938.70x = 797,908.05 × 265,740.30
  4. Step 4: Simplify right side
    531,938.70x = 212,036,324,579.42
  5. Step 5: Solve for x
    x = 212,036,324,579.42/531,938.70
  6. Step 6: Final answer
    x = 398,610.45

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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.