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Finding the Fourth Proportional to 524,374.80, 786,677.40 and 169,328.40

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Solution

The fourth proportional to 524,374.80, 786,677.40 and 169,328.40 is: 254,029.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,374.80 : 786,677.40 = 169,328.40 : x
  2. Step 2: Convert to fraction form
    524,374.80/786,677.40 = 169,328.40/x
  3. Step 3: Cross multiply
    524,374.80x = 786,677.40 × 169,328.40
  4. Step 4: Simplify right side
    524,374.80x = 133,206,825,458.16
  5. Step 5: Solve for x
    x = 133,206,825,458.16/524,374.80
  6. Step 6: Final answer
    x = 254,029.80

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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.