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Finding the Fourth Proportional to 474,156.78, 711,790.83 and 374,384.22

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Solution

The fourth proportional to 474,156.78, 711,790.83 and 374,384.22 is: 562,015.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,156.78 : 711,790.83 = 374,384.22 : x
  2. Step 2: Convert to fraction form
    474,156.78/711,790.83 = 374,384.22/x
  3. Step 3: Cross multiply
    474,156.78x = 711,790.83 × 374,384.22
  4. Step 4: Simplify right side
    474,156.78x = 266,483,254,692.70
  5. Step 5: Solve for x
    x = 266,483,254,692.70/474,156.78
  6. Step 6: Final answer
    x = 562,015.07

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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.