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Finding the Fourth Proportional to 555,261.40, 832,892.10 and 200,330.20

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Solution

The fourth proportional to 555,261.40, 832,892.10 and 200,330.20 is: 300,495.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,261.40 : 832,892.10 = 200,330.20 : x
  2. Step 2: Convert to fraction form
    555,261.40/832,892.10 = 200,330.20/x
  3. Step 3: Cross multiply
    555,261.40x = 832,892.10 × 200,330.20
  4. Step 4: Simplify right side
    555,261.40x = 166,853,440,971.42
  5. Step 5: Solve for x
    x = 166,853,440,971.42/555,261.40
  6. Step 6: Final answer
    x = 300,495.30

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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.