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Finding the Fourth Proportional to 572,896.98, 790,571.01 and 318,263.70

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Solution

The fourth proportional to 572,896.98, 790,571.01 and 318,263.70 is: 439,189.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,896.98 : 790,571.01 = 318,263.70 : x
  2. Step 2: Convert to fraction form
    572,896.98/790,571.01 = 318,263.70/x
  3. Step 3: Cross multiply
    572,896.98x = 790,571.01 × 318,263.70
  4. Step 4: Simplify right side
    572,896.98x = 251,610,054,755.34
  5. Step 5: Solve for x
    x = 251,610,054,755.34/572,896.98
  6. Step 6: Final answer
    x = 439,189.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.