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Finding the Fourth Proportional to 569,626.33, 786,425.43 and 355,057.03

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Solution

The fourth proportional to 569,626.33, 786,425.43 and 355,057.03 is: 490,191.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,626.33 : 786,425.43 = 355,057.03 : x
  2. Step 2: Convert to fraction form
    569,626.33/786,425.43 = 355,057.03/x
  3. Step 3: Cross multiply
    569,626.33x = 786,425.43 × 355,057.03
  4. Step 4: Simplify right side
    569,626.33x = 279,225,877,492.27
  5. Step 5: Solve for x
    x = 279,225,877,492.27/569,626.33
  6. Step 6: Final answer
    x = 490,191.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.