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Finding the Fourth Proportional to 575,353.50, 793,958.94 and 320,655.48

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Solution

The fourth proportional to 575,353.50, 793,958.94 and 320,655.48 is: 442,488.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,353.50 : 793,958.94 = 320,655.48 : x
  2. Step 2: Convert to fraction form
    575,353.50/793,958.94 = 320,655.48/x
  3. Step 3: Cross multiply
    575,353.50x = 793,958.94 × 320,655.48
  4. Step 4: Simplify right side
    575,353.50x = 254,587,285,005.99
  5. Step 5: Solve for x
    x = 254,587,285,005.99/575,353.50
  6. Step 6: Final answer
    x = 442,488.46

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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.