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Finding the Fourth Proportional to 482,879.99, 724,326.84 and 145,923.45

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Solution

The fourth proportional to 482,879.99, 724,326.84 and 145,923.45 is: 218,887.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,879.99 : 724,326.84 = 145,923.45 : x
  2. Step 2: Convert to fraction form
    482,879.99/724,326.84 = 145,923.45/x
  3. Step 3: Cross multiply
    482,879.99x = 724,326.84 × 145,923.45
  4. Step 4: Simplify right side
    482,879.99x = 105,696,271,420.40
  5. Step 5: Solve for x
    x = 105,696,271,420.40/482,879.99
  6. Step 6: Final answer
    x = 218,887.25

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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.