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Finding the Fourth Proportional to 555,213.40, 832,820.10 and 239,450.20

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Solution

The fourth proportional to 555,213.40, 832,820.10 and 239,450.20 is: 359,175.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,213.40 : 832,820.10 = 239,450.20 : x
  2. Step 2: Convert to fraction form
    555,213.40/832,820.10 = 239,450.20/x
  3. Step 3: Cross multiply
    555,213.40x = 832,820.10 × 239,450.20
  4. Step 4: Simplify right side
    555,213.40x = 199,418,939,509.02
  5. Step 5: Solve for x
    x = 199,418,939,509.02/555,213.40
  6. Step 6: Final answer
    x = 359,175.30

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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.