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Finding the Fourth Proportional to 524,145.40, 786,218.10 and 489,153.40

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Solution

The fourth proportional to 524,145.40, 786,218.10 and 489,153.40 is: 733,730.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,145.40 : 786,218.10 = 489,153.40 : x
  2. Step 2: Convert to fraction form
    524,145.40/786,218.10 = 489,153.40/x
  3. Step 3: Cross multiply
    524,145.40x = 786,218.10 × 489,153.40
  4. Step 4: Simplify right side
    524,145.40x = 384,581,256,756.54
  5. Step 5: Solve for x
    x = 384,581,256,756.54/524,145.40
  6. Step 6: Final answer
    x = 733,730.10

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.