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Finding the Fourth Proportional to 571,356.96, 856,289.04 and 318,627.36

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Solution

The fourth proportional to 571,356.96, 856,289.04 and 318,627.36 is: 477,524.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,356.96 : 856,289.04 = 318,627.36 : x
  2. Step 2: Convert to fraction form
    571,356.96/856,289.04 = 318,627.36/x
  3. Step 3: Cross multiply
    571,356.96x = 856,289.04 × 318,627.36
  4. Step 4: Simplify right side
    571,356.96x = 272,837,116,212.13
  5. Step 5: Solve for x
    x = 272,837,116,212.13/571,356.96
  6. Step 6: Final answer
    x = 477,524.80

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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.