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Finding the Fourth Proportional to 571,408.40, 856,529.40 and 334,629.20

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Solution

The fourth proportional to 571,408.40, 856,529.40 and 334,629.20 is: 501,602.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,408.40 : 856,529.40 = 334,629.20 : x
  2. Step 2: Convert to fraction form
    571,408.40/856,529.40 = 334,629.20/x
  3. Step 3: Cross multiply
    571,408.40x = 856,529.40 × 334,629.20
  4. Step 4: Simplify right side
    571,408.40x = 286,619,747,898.48
  5. Step 5: Solve for x
    x = 286,619,747,898.48/571,408.40
  6. Step 6: Final answer
    x = 501,602.27

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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.