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Finding the Fourth Proportional to 571,692.23, 788,929.91 and 313,563.89

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Solution

The fourth proportional to 571,692.23, 788,929.91 and 313,563.89 is: 432,715.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,692.23 : 788,929.91 = 313,563.89 : x
  2. Step 2: Convert to fraction form
    571,692.23/788,929.91 = 313,563.89/x
  3. Step 3: Cross multiply
    571,692.23x = 788,929.91 × 313,563.89
  4. Step 4: Simplify right side
    571,692.23x = 247,379,929,949.13
  5. Step 5: Solve for x
    x = 247,379,929,949.13/571,692.23
  6. Step 6: Final answer
    x = 432,715.22

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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.