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Finding the Fourth Proportional to 525,483.03, 724,891.64 and 331,820.54

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Solution

The fourth proportional to 525,483.03, 724,891.64 and 331,820.54 is: 457,738.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,483.03 : 724,891.64 = 331,820.54 : x
  2. Step 2: Convert to fraction form
    525,483.03/724,891.64 = 331,820.54/x
  3. Step 3: Cross multiply
    525,483.03x = 724,891.64 × 331,820.54
  4. Step 4: Simplify right side
    525,483.03x = 240,533,935,426.29
  5. Step 5: Solve for x
    x = 240,533,935,426.29/525,483.03
  6. Step 6: Final answer
    x = 457,738.73

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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.