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Finding the Fourth Proportional to 435,335.80, 653,003.70 and 293,618.20

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Solution

The fourth proportional to 435,335.80, 653,003.70 and 293,618.20 is: 440,427.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,335.80 : 653,003.70 = 293,618.20 : x
  2. Step 2: Convert to fraction form
    435,335.80/653,003.70 = 293,618.20/x
  3. Step 3: Cross multiply
    435,335.80x = 653,003.70 × 293,618.20
  4. Step 4: Simplify right side
    435,335.80x = 191,733,770,987.34
  5. Step 5: Solve for x
    x = 191,733,770,987.34/435,335.80
  6. Step 6: Final answer
    x = 440,427.30

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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.