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Finding the Fourth Proportional to 569,415.80, 854,123.70 and 359,982.20

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Solution

The fourth proportional to 569,415.80, 854,123.70 and 359,982.20 is: 539,973.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,415.80 : 854,123.70 = 359,982.20 : x
  2. Step 2: Convert to fraction form
    569,415.80/854,123.70 = 359,982.20/x
  3. Step 3: Cross multiply
    569,415.80x = 854,123.70 × 359,982.20
  4. Step 4: Simplify right side
    569,415.80x = 307,469,328,598.14
  5. Step 5: Solve for x
    x = 307,469,328,598.14/569,415.80
  6. Step 6: Final answer
    x = 539,973.30

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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.