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Finding the Fourth Proportional to 543,438.30, 809,526.07 and 534,495.90

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Solution

The fourth proportional to 543,438.30, 809,526.07 and 534,495.90 is: 796,205.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,438.30 : 809,526.07 = 534,495.90 : x
  2. Step 2: Convert to fraction form
    543,438.30/809,526.07 = 534,495.90/x
  3. Step 3: Cross multiply
    543,438.30x = 809,526.07 × 534,495.90
  4. Step 4: Simplify right side
    543,438.30x = 432,688,365,358.11
  5. Step 5: Solve for x
    x = 432,688,365,358.11/543,438.30
  6. Step 6: Final answer
    x = 796,205.14

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.