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Finding the Fourth Proportional to 492,653.89, 738,636.98 and 252,300.77

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Solution

The fourth proportional to 492,653.89, 738,636.98 and 252,300.77 is: 378,275.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,653.89 : 738,636.98 = 252,300.77 : x
  2. Step 2: Convert to fraction form
    492,653.89/738,636.98 = 252,300.77/x
  3. Step 3: Cross multiply
    492,653.89x = 738,636.98 × 252,300.77
  4. Step 4: Simplify right side
    492,653.89x = 186,358,675,742.04
  5. Step 5: Solve for x
    x = 186,358,675,742.04/492,653.89
  6. Step 6: Final answer
    x = 378,275.05

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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.