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Finding the Fourth Proportional to 553,313.56, 829,999.86 and 174,263.92

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Solution

The fourth proportional to 553,313.56, 829,999.86 and 174,263.92 is: 261,405.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,313.56 : 829,999.86 = 174,263.92 : x
  2. Step 2: Convert to fraction form
    553,313.56/829,999.86 = 174,263.92/x
  3. Step 3: Cross multiply
    553,313.56x = 829,999.86 × 174,263.92
  4. Step 4: Simplify right side
    553,313.56x = 144,639,029,203.05
  5. Step 5: Solve for x
    x = 144,639,029,203.05/553,313.56
  6. Step 6: Final answer
    x = 261,405.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.