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Finding the Fourth Proportional to 525,086.99, 724,560.12 and 295,638.36

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Solution

The fourth proportional to 525,086.99, 724,560.12 and 295,638.36 is: 407,947.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,086.99 : 724,560.12 = 295,638.36 : x
  2. Step 2: Convert to fraction form
    525,086.99/724,560.12 = 295,638.36/x
  3. Step 3: Cross multiply
    525,086.99x = 724,560.12 × 295,638.36
  4. Step 4: Simplify right side
    525,086.99x = 214,207,762,881.10
  5. Step 5: Solve for x
    x = 214,207,762,881.10/525,086.99
  6. Step 6: Final answer
    x = 407,947.19

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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.