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Finding the Fourth Proportional to 570,912.59, 856,100.70 and 331,094.66

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Solution

The fourth proportional to 570,912.59, 856,100.70 and 331,094.66 is: 496,486.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,912.59 : 856,100.70 = 331,094.66 : x
  2. Step 2: Convert to fraction form
    570,912.59/856,100.70 = 331,094.66/x
  3. Step 3: Cross multiply
    570,912.59x = 856,100.70 × 331,094.66
  4. Step 4: Simplify right side
    570,912.59x = 283,450,365,911.76
  5. Step 5: Solve for x
    x = 283,450,365,911.76/570,912.59
  6. Step 6: Final answer
    x = 496,486.45

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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.