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Finding the Fourth Proportional to 482,811.90, 724,390.65 and 202,415.10

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Solution

The fourth proportional to 482,811.90, 724,390.65 and 202,415.10 is: 303,695.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,811.90 : 724,390.65 = 202,415.10 : x
  2. Step 2: Convert to fraction form
    482,811.90/724,390.65 = 202,415.10/x
  3. Step 3: Cross multiply
    482,811.90x = 724,390.65 × 202,415.10
  4. Step 4: Simplify right side
    482,811.90x = 146,627,605,858.82
  5. Step 5: Solve for x
    x = 146,627,605,858.82/482,811.90
  6. Step 6: Final answer
    x = 303,695.10

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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.