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Finding the Fourth Proportional to 554,553.60, 831,830.19 and 217,752.72

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Solution

The fourth proportional to 554,553.60, 831,830.19 and 217,752.72 is: 326,629.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,553.60 : 831,830.19 = 217,752.72 : x
  2. Step 2: Convert to fraction form
    554,553.60/831,830.19 = 217,752.72/x
  3. Step 3: Cross multiply
    554,553.60x = 831,830.19 × 217,752.72
  4. Step 4: Simplify right side
    554,553.60x = 181,133,286,450.62
  5. Step 5: Solve for x
    x = 181,133,286,450.62/554,553.60
  6. Step 6: Final answer
    x = 326,629.00

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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.