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Finding the Fourth Proportional to 374,191.35, 563,813.85 and 309,090.03

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Solution

The fourth proportional to 374,191.35, 563,813.85 and 309,090.03 is: 465,722.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,191.35 : 563,813.85 = 309,090.03 : x
  2. Step 2: Convert to fraction form
    374,191.35/563,813.85 = 309,090.03/x
  3. Step 3: Cross multiply
    374,191.35x = 563,813.85 × 309,090.03
  4. Step 4: Simplify right side
    374,191.35x = 174,269,239,810.92
  5. Step 5: Solve for x
    x = 174,269,239,810.92/374,191.35
  6. Step 6: Final answer
    x = 465,722.26

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.