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Finding the Fourth Proportional to 482,884.80, 724,323.60 and 145,924.80

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Solution

The fourth proportional to 482,884.80, 724,323.60 and 145,924.80 is: 218,886.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,884.80 : 724,323.60 = 145,924.80 : x
  2. Step 2: Convert to fraction form
    482,884.80/724,323.60 = 145,924.80/x
  3. Step 3: Cross multiply
    482,884.80x = 724,323.60 × 145,924.80
  4. Step 4: Simplify right side
    482,884.80x = 105,696,776,465.28
  5. Step 5: Solve for x
    x = 105,696,776,465.28/482,884.80
  6. Step 6: Final answer
    x = 218,886.11

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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.